India’s ethanol programme is about to lose one of its oldest feedstocks. According to multiple media reports in October 2026, the Centre is expected to stop sugar mills from making ethanol out of sugarcane juice, sugar syrup and B-heavy molasses for the 2026-27 Ethanol Supply Year (ESY), which starts on 1 November.

The reason is simple: sugar output has fallen short, and the government wants enough sugar on the shelves. But any limit on sugar diversion for ethanol raises a harder question. If cane can’t be counted on, and grain is already pushing up feed and food prices, where will the next litre of ethanol come from?

This article explains what the expected restriction covers, how much ethanol is at stake, and why second-generation (2G) ethanol made from crop residue has moved from a long-term ambition to a practical necessity for keeping India at E20 and beyond.

What the Government Is Expected to Restrict in 2026-27

Reports by the Times of India, ChiniMandi and others say the restriction will cover three cane-based routes to ethanol:

• Sugarcane juice and sugar syrup: fermented directly into ethanol, with no sugar produced
• B-heavy molasses: a by-product taken out of the sugar process early, while it still contains a lot of recoverable sugar
• The sugar that would otherwise be made from both

Mills would still be allowed to use C-heavy molasses, the final by-product left after as much sugar as possible has been extracted. Grain-based ethanol from maize and rice would be expected to make up the rest.

At the time of writing, the restriction was reported as expected rather than notified. Readers should check the final government order for the exact terms.

This has happened before

India has done this once already. On 7 December 2023, the government banned the use of sugarcane juice and syrup for ethanol in ESY 2023-24. About a week later, it revised the order to allow both juice and B-heavy molasses, within an overall cap of 17 lakh tonnes of sugar diverted. The pattern is clear: when the cane crop falls short, ethanol is the first use to be cut.

Why Sugar Diversion for Ethanol Is Being Stopped

The numbers for the 2025-26 sugar season (October–September), as reported by ChiniMandi, show why the government is worried:

Indicator	Reported figure
Initial 2025-26 production estimate	~343 lakh tonnes
Revised estimate (August 2026, including sugar diverted to ethanol)	~306 lakh tonnes
Sugar diverted to ethanol in 2025-26	~30 lakh tonnes (close to 10% of output)
Net sugar production	~279 lakh tonnes
Domestic consumption	~280–285 lakh tonnes
Opening stock, 1 October 2026	~37.5 lakh tonnes (vs ~50 lakh tonnes a year earlier)

Crop disease, waterlogging and bad weather in Maharashtra and Karnataka cut cane yields. Net production now roughly matches consumption, and opening stocks are about a quarter lower than last year, so the government has little room to spare. Stopping sugar diversion for ethanol is the quickest way to keep more sugar in the domestic market.

Will India’s Ethanol Blending Target Survive?

India reached 20% ethanol blending in petrol in 2025, five years ahead of the 2030 target set under the National Policy on Biofuels. Petroleum Minister Hardeep Singh Puri announced the milestone in July 2025. Holding that level needs more than 1,000 crore litres of ethanol a year.

How much ethanol is at stake

For ESY 2025-26, oil marketing companies (OMCs) allocated about 1,048 crore litres of ethanol in the first tender cycle. The breakdown, as reported by BioEnergy Times in October 2025:

Feedstock	Share of allocation	Approx. volume
Maize	45.68%	~478.9 crore litres
FCI rice	22.25%	~233.3 crore litres
Sugarcane juice	15.82%	~165.9 crore litres
B-heavy molasses	10.54%	~110.5 crore litres
Damaged food grains	4.54%	~47.6 crore litres
C-heavy molasses	1.16%	~12.2 crore litres

Cane juice and B-heavy molasses together made up about 26% of that allocation, roughly 276 crore litres. That’s the volume a full restriction would affect.

A note on differing figures: other estimates put cane’s share of ethanol supply anywhere from about 25% to 33%. Reports also say grain now provides “nearly three-fourths” of India’s ethanol. The numbers differ because some count tender allocations and some count actual deliveries, and because they cover different parts of the year. Whichever number you use, about a quarter or more of India’s ethanol has come from cane.

On paper, grain can fill the gap

Capacity isn’t the bottleneck. For ESY 2025-26, manufacturers offered OMCs about 1,776 crore litres against a requirement of around 1,050 crore litres. Many distilleries can run on grain, and the reports suggest more maize and rice ethanol can keep blending at 20%.

The real constraint is feedstock, and that’s where grain has its own problems.

The Grain Problem: Food, Feed and Prices

Moving ethanol away from sugar mostly moves the pressure onto maize and rice.

• Maize use for ethanol has climbed sharply. In a Lok Sabha reply in July 2026, the Ministry of Consumer Affairs, Food and Public Distribution said 131.1 lakh tonnes of maize went to ethanol in ESY 2024-25, up from 75.4 lakh tonnes in 2023-24.
• FCI rice is going to ethanol too. The same reply said 44.2 lakh tonnes of surplus FCI rice was supplied for ethanol up to 30 June in ESY 2025-26. The ministry said this happens only after food security and buffer stock needs are met.
• Feed prices are rising. Business Today reported in September 2026 that wholesale maize was around ₹27 per kg, more than 30% higher than in May–June. Maize makes up about 55% of poultry feed by weight, and wholesale egg prices in Delhi were reported to be sharply higher than a year earlier.
• Supply may tighten. The same report cited the US Department of Agriculture’s expectation that India’s maize production could fall by around 10% in 2026-27.

Our analysis: using more grain to make up for cane works as a short-term fix, but it simply swaps a sugar-versus-fuel trade-off for a feed-versus-fuel one. When a feedstock competes with food or feed, policymakers will cut it during a shortage. Cane has now shown this twice in three years. Grain could be next.

Why 2G Ethanol Is the Need of the Hour

Second-generation (2G) ethanol is made from lignocellulosic biomass: rice straw, wheat straw, bagasse, corn cobs, bamboo and other residues that people don’t eat. Here’s why it matters more after this restriction.

1. It breaks the food-versus-fuel link

Crop residue is left over after the grain or cane has been harvested. Using it for ethanol doesn’t take sugar off the shelf or maize out of a poultry farm. That makes 2G ethanol the one feedstock route that a sugar or grain shortage can’t shut down.

2. It gives ethanol supply some protection from bad monsoons

A drought or flood that hits cane or maize hurts sugar and ethanol at once. Residue supply still varies with the harvest, but it isn’t fought over the same way. A weak cane year leaves food supply and the blending programme in conflict. A residue-based supply avoids most of that.

3. Sugar mills already have a 2G feedstock: bagasse

When juice and B-heavy molasses are restricted, mill distilleries can sit idle. Bagasse, the fibre left after crushing, is already on site. In August 2024 the Union Cabinet amended the Pradhan Mantri JI-VAN Yojana, extended it to 2028-29, and opened it to bolt-on and brownfield projects using agricultural residue and other lignocellulosic feedstocks. Adding 2G units to existing mills could keep that distillery capacity busy without touching sugar.

4. It turns a pollution problem into fuel

Paddy straw is burnt across north India every autumn because farmers have a short window before sowing wheat. IOCL’s Panipat 2G plant was designed to use about 2 lakh tonnes of rice straw a year to produce roughly 3 crore litres of ethanol. That gives farmers a buyer for straw they would otherwise burn.

Where India’s 2G Ethanol Programme Stands in 2026

Progress is real but small:

Plant	Operator	Feedstock	Status
Panipat, Haryana	IOCL	Rice straw	Dedicated to the nation, August 2022 (100 KLPD design)
Numaligarh, Assam	NRL	Bamboo	Inaugurated September 2025 (design: ~49,000 tonnes of ethanol a year)
Bargarh, Odisha	BPCL	Rice straw	2G unit commissioned 19 March 2026 (30,000 KL/year design)
Bathinda, Punjab	HPCL	Agricultural residue	Reported as under construction in government statements in 2024

Our analysis: taken together, the three commissioned plants have a design capacity of roughly 12 crore litres a year (our own conversion of the Numaligarh tonnage). That’s less than 5% of the ~276 crore litres of juice and B-heavy molasses ethanol now at risk. Running at full capacity also takes time. An RTI response reported that the Bargarh complex produced just 76 KL of 2G ethanol in FY 2025-26, because the unit began operating only in the last days of the financial year.

So 2G ethanol can’t fill the 2026-27 gap. That’s the main reason to build it faster now. Each new cane or grain shortage will hit a blending programme that still relies almost entirely on food crops, unless non-food capacity is in place before the next shortage.

What Would Help 2G Ethanol Scale Faster

The suggestions below are our analysis, not existing government policy.

• Long-term offtake certainty: OMC contracts that run longer than one supply year, with separate pricing for 2G ethanol, would make new plants easier to finance.
• Biomass supply chains: baling, collection and storage networks so plants can run all year on residue that is harvested in a few weeks.
• Mill-level integration: pushing sugar mills to add bagasse-based 2G units under the amended JI-VAN scheme.
• By-product value: 2G biorefineries can recover co-products such as silica, gypsum and lignin, which improve plant economics.
• Feedstock-neutral targets: tracking how much ethanol comes from non-food feedstocks, alongside the overall blending percentage.

Conclusion

The expected halt on sugar diversion for ethanol is a sensible response to a short sugar year. Opening stocks are lower, net output roughly matches consumption, and the government doesn’t want sugar prices to rise. India can probably hold E20 in 2026-27 by using more maize and rice.

That fix has a cost, though. Grain-based ethanol is already raising feed costs and adding to demand on FCI rice, and maize output may fall. A blending programme built almost entirely on food crops will keep facing restrictions like this one whenever a harvest falls short.

2G ethanol is the way out of that cycle. India has the residue, the policy framework and the first working plants. What it needs now is speed: more plants, reliable biomass supply chains, and offtake terms that make 2G projects bankable. If India wants to keep blending high and to move towards E25 or E30 later, more of its ethanol needs to come from crop waste.

Frequently Asked Questions

Has India banned sugar diversion for ethanol in 2026-27?

As of early October 2026, multiple media reports said the Centre was expected to bar mills from using sugarcane juice, syrup and B-heavy molasses for ethanol in ESY 2026-27, starting 1 November. Check the official notification for final terms.

Why is the government restricting ethanol from sugarcane?

Sugar output in 2025-26 came in well below early estimates because of weather and crop problems in Maharashtra and Karnataka. Opening stocks have dropped to about 37.5 lakh tonnes, so the government wants to keep more sugar in the domestic market.

Will the restriction affect E20 petrol availability?

Reports suggest the 20% blending level can be kept by using more ethanol from maize, rice and C-heavy molasses, since distillery capacity is well above OMC demand. The pressure moves to grain supplies and prices instead.

What is the difference between B-heavy and C-heavy molasses?

B-heavy molasses is taken out of the sugar process earlier, so it still contains sugar that could have been recovered as sugar. C-heavy molasses is the final residue after maximum sugar extraction. That’s why C-heavy molasses is usually allowed even when diversion is restricted.

What is 2G ethanol and how is it different from 1G ethanol?

1G ethanol is made from food crops such as cane juice, molasses, maize or rice. 2G ethanol is made from non-food lignocellulosic biomass such as rice straw, bagasse or bamboo, so it doesn’t compete with food or feed.

How many 2G ethanol plants are operating in India?

Commercial 2G plants have been commissioned at Panipat (IOCL, 2022), Numaligarh (NRL, bamboo-based, 2025) and Bargarh (BPCL, 2026). HPCL’s Bathinda project was reported as under construction. The Pradhan Mantri JI-VAN Yojana has been extended to 2028-29 to support more projects.

For years, India’s ethanol story has been told in one number: 20. E20 petrol, a blend of 20 percent ethanol, was the milestone the country worked towards. That number is now starting to look small. Union Road Transport and Highways Minister Nitin Gadkari is openly pushing for vehicles that need no petrol at all and run entirely on ethanol.

In late September 2026, Gadkari said he had been invited to the October launch of Toyota’s Innova flex-fuel vehicle, a car capable of running on 100 percent ethanol. He said its running cost would be equivalent to a petrol car using fuel priced at around Rs 25 a litre, and claimed the vehicle would generate 60 percent electricity while running, without elaborating. He made the remarks while responding to questions over the E20 policy, which has faced scrutiny in Parliament and on social media over mileage, engine performance and maintenance. Maruti Suzuki had already launched what it described as India’s first flex-fuel passenger car in June, and such vehicles can run on blends from E20 up to pure ethanol.

The pitch is not only about cars. At an event in Bhopal on 25 September, Gadkari said all automobile companies would prepare flex-fuel vehicles that can use ethanol as the sole fuel, that India spends around Rs 22 lakh crore a year importing petroleum products, and that the farmer is now an “urja data” (energy provider) as well as an “anna data” (food provider).

It is a compelling vision, but the launch announcements rarely answer the obvious question: if India moves towards 100 percent ethanol fuel, how much ethanol does that take, and where does it come from? This article works through the numbers, explains why first-generation (1G) ethanol made from food crops cannot carry an E100 transition, and shows why second-generation (2G) ethanol made from crop residue is the only pathway with the scale to get India there.

From E20 to E100: India’s Next Fuel Ambition

India’s Ethanol Blended Petrol programme took E20 from target to forecourt, and ethanol supply has grown faster than blending demand. The Grain Ethanol Manufacturers Association said in December 2025 that ethanol consumption had plateaued at around 1,200 crore litres even though the industry could supply about 1,500 crore litres. Gadkari himself put India’s annual ethanol procurement at around 1,500 crore litres from nearly 550 producers using sugarcane juice, molasses, rice and maize. Trade coverage this week has already referred to a 27 percent blending target.

That spare capacity is the commercial logic behind flex-fuel vehicles (FFVs), engines that can run on anything from petrol-ethanol blends to pure ethanol. Gadkari argues ethanol is used in 19 countries and says no complaints are coming from vehicles in India. The government has said it has not received widespread or confirmed complaints from manufacturers, automobile associations or consumer groups about E20’s effect on mileage, engine health or maintenance costs, citing laboratory studies and field trials.

What has and hasn’t been announced. The references describe vehicle launches and ministerial statements: the Toyota Innova flex-fuel launch expected in October, Maruti Suzuki’s June flex-fuel car, and Gadkari’s statement that carmakers will build flex-fuel engines. None of them sets a nationwide E100 blending mandate, a rollout date, or a plan for where E100 will be sold. E100 today is a vehicle story. The fuel-supply story is still open.

How Much Ethanol Would 100% Blending Actually Require?

The Ministry of Petroleum and Natural Gas estimated that about 1,016 crore litres (10.16 billion litres) of ethanol would be needed for 20 percent blending in 2025-26. That figure implies petrol demand of roughly 50 billion litres a year. From there, the scale of higher blends is simple arithmetic.

• By volume alone: E100 is five times the ethanol content of E20, so it needs about 51 billion litres a year. E85 is 4.25 times E20, or about 43 billion litres.
• Adjusted for energy content: ethanol’s calorific value is 30 to 35 percent lower than petrol’s, according to ARAI and industry officials speaking on E20. Brazil’s experience is that ethanol engines use about 25 percent more ethanol per mile than petrol engines use petrol. On that basis, replacing all petrol at today’s demand would take roughly 64 to 78 billion litres of ethanol.

Blending level	Ethanol required annually	Where India stands
E20 (current)	~10.2 billion litres for blending	Supply of ~15 billion litres a year is already available
E85	~43 billion litres (volume basis	No confirmed timeline
E100 (floor)	~51 billion litres (volume basis)	Vehicles launching; supply pathway undecided
E100 (energy-adjusted)	~64-78 billion litres	Ceiling case: every petrol vehicle flex-fuel, today’s demand

These are our own calculations from the cited inputs, not official projections. They cover petrol demand at today’s level, ignore future growth, and assume every petrol vehicle is flex-fuel, so they are best read as the ceiling of the ambition. Even so, the gap is stark: E100 would need somewhere between 3.4 and 5.2 times the roughly 15 billion litres India procures today, and the current surplus of about 3 billion litres of unused capacity covers only a small slice of it.

Why 1G Ethanol Cannot Carry India to E100

India’s ethanol today comes overwhelmingly from 1G feedstocks: sugarcane juice, molasses, maize and rice. Down To Earth, citing the earlier planning for the 2025 blending target, reported that producing about 1,500 crore litres of ethanol would require diverting around 165 lakh tonnes of grain and 60 lakh tonnes of sugar, and that this route also raises the water footprint significantly.

Scale that up linearly to the E100 range of 51 to 78 billion litres, roughly 3.4 to 5.2 times, and the diversion becomes about 56 to 86 million tonnes of grain and 20 to 31 million tonnes of sugar every year. This is an illustration rather than a forecast, but for context India’s annual sugar production has recently been in the range of roughly 26 to 32 million tonnes. Diverting anything close to that is not a supply plan that food and sugar markets could absorb.

The strain is already visible at E20. Speaking in Bhopal, Gadkari said maize had earlier sold at around Rs 1,200 a quintal against an MSP of Rs 1,800, and that prices in Uttar Pradesh and Bihar rose to around Rs 2,600 a quintal after maize was increasingly used for ethanol. That is good news for farmers in the short run and evidence of how quickly ethanol demand moves food-crop prices. The same speech is revealing on strategy: “Country’s farmers will produce ethanol from maize,” he said. Maize-based ethanol is exactly the 1G route that cannot stretch to E100 volumes.

• Sugarcane is water- and land-intensive, and expanding it several-fold to fuel cars competes with food, sugar and irrigation needs.
• Maize is already pulled between food, feed and fuel, and ethanol demand is visibly lifting its price.
• Rice diversion draws political scrutiny because it competes with grain meant for food security.

1G ethanol got India to E20. It is not built to take India to E100 without reopening the food-versus-fuel debate at several times the scale.

2G Ethanol: The Only Realistic Path to E100 Scale

Second-generation ethanol is made from lignocellulosic biomass such as rice straw, wheat straw, bagasse and other crop residue, not from the harvested food crop. It is the only feedstock pool in India large enough to be discussed in the same breath as E100.

A TIFAC study with the Indian Agricultural Research Institute estimated that eleven selected crops generate about 683 million tonnes of dry biomass a year. About 178 million tonnes of that, 26 percent, is surplus after farmers’ own uses. The theoretical bioethanol potential of that surplus is 51.35 billion litres a year. Down To Earth separately notes that India generates about 500 million tonnes of agricultural waste a year, more than half of which is discarded or burned.

The headline comparison. The theoretical 2G potential from surplus crop residue (~51 billion litres) is in the same range as the volume-basis E100 requirement (~51 billion litres). On paper, 2G is the only pathway that can approach E100. The next section explains why the practical number is lower.

2G also solves a second problem. Much of the surplus is paddy straw burned in the fields of Punjab and Haryana each year, a major source of seasonal smog. Praj Industries estimated that the 32 million tonnes of residue burned in Punjab in a single season could have yielded about 6 billion litres of ethanol. Turning residue into fuel tackles ethanol supply and air quality with one feedstock stream, something 1G expansion cannot do.

Policy groundwork exists. The PM JI-VAN Yojana sanctioned Rs 1,969.5 crore of viability-gap support for commercial 2G projects, with twelve commercial and ten demonstration plants proposed. Indian Oil’s Panipat plant, unveiled in August 2022, is India’s first commercial-scale 2G ethanol biorefinery. It processes about 2 lakh tonnes of rice straw a year into roughly 3 crore litres of ethanol. Oil PSU refineries were also planned at Bathinda, Bargarh, Numaligarh and Davangere, according to a 2021 parliamentary reply.

The Reality Check: Technical Potential vs Ground Reality

The 51-billion-litre figure is a theoretical ceiling. It works out to about 288 litres per tonne of surplus residue, well above what India’s first commercial plant delivers. Panipat’s design output of about 3 crore litres from 2 lakh tonnes is around 150 litres per tonne. Praj Industries cites around 250 litres per tonne as typical for the technology. Applying those two yields to the 178 million tonnes of surplus gives roughly 27 to 45 billion litres, before any collection losses. Against an energy-adjusted E100 demand of 64 to 78 billion litres, that is between about a third and two-thirds of the requirement. It is enough to make 2G indispensable, not enough to make it painless.

The capital cost is the other constraint. Panipat cost over Rs 900 crore. Producing 30 billion litres at Panipat’s scale and cost would take about 1,000 such plants, roughly Rs 9 lakh crore. This is an illustrative extrapolation, and larger plants and learning effects should bring the cost per litre down. But it shows why the twelve commercial plants proposed under PM JI-VAN are a starting point, not a supply plan.

Challenge	Why it limits 2G scale-up
Very little commercial output	GEMA’s president said in December 2025 that permission exists to export 2G ethanol but it is not being produced, so 2G output is negligible
High capital cost	Panipat cost over Rs 900 crore for about 3 crore litres a year, far more per litre than a conventional distillery.
Real yields below theory	Panipat’s ~150 litres per tonne compares with a theoretical ~288 litres per tonne across the surplus.
Fragmented biomass supply	Residue is bulky, seasonal and spread across millions of small farms, so year-round collection and storage need organised logistics.
Weak near-term incentive	With 1G capacity already ahead of demand, there is little commercial pressure to fund costlier 2G plants without stronger policy support.

Are India’s Vehicles and Fuel Pumps Ready for E100?

Even with unlimited ethanol, E100 needs the right hardware. Brazil’s experience shows what flex-fuel engineering involves: replacing materials that ethanol corrodes, changing the amount of fuel injected, using sensors that adjust the engine to whatever blend is in the tank, and fitting a small auxiliary petrol tank to help cold starts. India will face the same engineering questions, particularly for cold-weather starting in the north.

On the fuel-retail side, none of the announcements say where E100 will be sold. Vehicles need dependable pumps, and pump operators and ethanol producers need confirmed vehicle demand. That chicken-and-egg problem has to be resolved alongside the supply problem.

Global Lessons: What Brazil Teaches India

Brazil is the reference case, and it offers encouragement and a warning. It ran dedicated ethanol cars in the 1980s, but pure-ethanol demand collapsed when supply was disrupted. Volkswagen’s Gol Total Flex arrived in March 2003 as the first commercial car able to run on any blend of petrol and ethanol, and flex-fuel adoption then moved fast. By 2005 flex cars were about half of new car sales, in August 2006 they were 62 percent, and today they account for over 90 percent of new light vehicles.

The speed came from price, not mandates. Flex cars did not cost more than conventional models, ethanol sold at between a third and half the price of petrol, and drivers chose fuel at the pump, typically switching to ethanol when it costs under about 70 percent of petrol. Brazil also blends around 27 percent ethanol in its standard petrol.

Factor	Brazil	India (late 2026)
Vehicle technology	Flex-fuel since 2003; over 90% of new light vehicles	First flex-fuel launches in 2026
What drove adoption	Price parity, no vehicle price premium, driver choice at the pump	Claimed Rs 25/litre-equivalent running cost; retail plan not announced
Feedstock	Sugarcane at large scale	Sugarcane, maize, rice; 2G negligible
Standard petrol blend	About E27	E20

The lesson for India is that vehicle technology is not the hard part. Brazil’s vehicles took off in a couple of years once price and fuel availability lined up. India’s challenge is to build the fuel supply, at a competitive price, before the vehicles arrive in volume, and its feedstock base is more food-constrained than Brazil’s.

What India Needs to Do to Make E100 Work

The ambition currently outpaces the supply plan. Closing the gap requires vehicles, feedstock and fuel retail to move together.

• Scale up viability-gap funding and fast-track approvals for 2G plants well beyond the 12 commercial plants under PM JI-VAN.
• Build biomass aggregation networks, with collection centres, storage and long-term supply contracts with farmer groups.
• Cap how much of any higher-blend target can come from food-crop feedstocks, so E85 and E100 do not repeat the maize and sugar price pressure seen at E20.
• Sequence the rollout through intermediate blends and regional E100 pilots as 2G capacity comes online.
• Put E100 dispensing in place alongside confirmed flex-fuel vehicle volumes, so supply and demand scale together.
• Keep funding research that lowers 2G enzyme and process costs, since cost matters as much as feedstock availability.

Conclusion: A Bold Vision That Needs a Waste-First Supply Plan

The logic behind India’s flex-fuel push is real: it extends the energy-security and farmer-income case behind E20 and gives surplus ethanol capacity somewhere to go. The vehicles are arriving, with Toyota’s ethanol-capable Innova due in October and Maruti Suzuki’s flex-fuel car already launched.

But the numbers show that E100 means roughly 51 billion litres of ethanol a year at the very least, and likely 64 to 78 billion once ethanol’s lower energy content is counted. That is several times what India produces today. Feeding that through sugarcane, maize and rice would take tens of millions of tonnes of food crops and repeat, at several times the size, the price pressure already visible in maize. 1G ethanol cannot carry E100. Second-generation ethanol from crop residue is the only feedstock with anything like the required scale, with a theoretical potential of about 51 billion litres and a more realistic 27 to 45 billion at demonstrated yields. Whether India can turn that into delivered fuel depends on plants, biomass logistics and price, all still at an early stage. The cars may arrive in October. The waste-first fuel supply chain to run them at national scale still has to be built.

Frequently Asked Questions

1. Has India officially approved a 100% ethanol (E100) blending target?

No. The references describe flex-fuel launches and ministerial statements, not a nationwide E100 mandate or timeline. Gadkari has said carmakers will build flex-fuel vehicles that can run on ethanol alone.

2. How much ethanol would India need for E100?

At current petrol demand, about 51 billion litres a year by volume, and roughly 64 to 78 billion litres once ethanol’s 30 to 35 percent lower energy content is accounted for. E20 needs about 10.2 billion litres. These are estimates based on the ministry’s E20 figure, not official projections.

3. Does India produce enough ethanol for E100?

No. India procures about 1,500 crore litres (15 billion litres) a year, and consumption has plateaued around 1,200 crore litres. E100 would need roughly 3.4 to 5.2 times current procurement.

4. Why can’t sugarcane, rice and maize be scaled up for E100?

Scaling today’s grain and sugar diversion to E100 volumes would mean roughly 56 to 86 million tonnes of grain and 20 to 31 million tonnes of sugar a year, on top of the water demand. Maize prices have already risen sharply because of ethanol demand.

5. What is 2G ethanol and why is it the solution?

2G ethanol is made from crop residue such as paddy straw, wheat straw and bagasse rather than food crops. TIFAC estimates surplus residue of about 178 million tonnes could theoretically yield 51.35 billion litres a year, the only pool of that size.

6. Can 2G ethanol alone fully cover E100?

Not easily. At Panipat’s demonstrated yield the surplus residue gives about 27 billion litres, and at typical technology yields about 45 billion, against an energy-adjusted need of 64 to 78 billion. 2G must be the backbone, and rollout will likely be staged.

7. Which E100-capable vehicles are being launched?

Maruti Suzuki launched what it called India’s first flex-fuel passenger car in June 2026, and Toyota’s flex-fuel Innova, capable of running on 100 percent ethanol, is expected in October.

8. What would E100 cost to run?

Gadkari said the Innova’s running cost would equal that of a petrol car using fuel at about Rs 25 a litre. That is a ministerial claim, not an independently verified figure.

9. Is India’s 2G ethanol industry ready?

Not yet. Indian Oil’s Panipat plant is the first commercial facility, and GEMA’s president said in December 2025 that 2G ethanol production is negligible.

10. How does India compare with Brazil?

Brazil’s flex-fuel cars reached majority of new sales within about three years of launch, driven by price parity and no vehicle premium. India has the vehicle technology arriving but not yet the fuel supply or retail plan.

Introduction: A Fuel Success Story With a Feedstock Problem

India’s ethanol blending programme has become one of the more visible achievements of the country’s clean-energy push. What began as a modest, sugarcane-driven initiative has expanded into a nationwide E20 rollout, with fuel standards for even higher blends -E22, E25, E27 and E30 -already notified by the government. Distillery capacity across the country has grown from around 421 crore litres in 2014 to nearly 2,000 crore litres today, roughly double the ethanol that oil marketing companies (OMCs) currently offtake in a year.

But the composition of that ethanol has changed just as dramatically as its volume. In the programme’s early years, almost all of it came from a single, low-value by-product of sugar milling: C-heavy molasses, the residual syrup left over after sugar has been crystallised out of cane juice. Today, the picture looks very different. For the ethanol supply year ending October 2026, grain -chiefly maize and rice sourced from the Food Corporation of India (FCI) -is expected to account for as much as 72.5 per cent of total ethanol supply, against 27.5 per cent from sugarcane-based feedstock.

This shift from a sugar-industry by-product to staple food grains sits at the centre of a genuine and still-unresolved policy debate. It touches food security, given that some of the rice diverted to ethanol comes from stocks meant for welfare schemes. It touches water security, because rice, sugarcane and maize are all water-intensive crops grown heavily in already-stressed regions. It touches vehicle economics, since ethanol’s chemical properties differ meaningfully from petrol’s. And it sits alongside a separate but related story -India’s consistently poor showing on Yale University’s Environmental Performance Index (EPI), which has repeatedly flagged air quality and biodiversity as the country’s weakest links.

This article draws on government data, independent agricultural reporting, and policy documentation to lay out what is actually happening in India’s ethanol economy, where the genuine trade-offs lie, and why second-generation (2G) ethanol -made from crop residues rather than food grain -is increasingly presented as the structural answer to several of these tensions at once.

The Evolution of India’s Ethanol Blended Petrol Programme

India’s Ethanol Blended Petrol (EBP) programme was originally conceived to support the sugar industry. Sugar mills facing stagnant domestic consumption but rising production needed an additional revenue stream to make timely cane payments to farmers, and ethanol supplied that outlet. Until 2017-18, the entire ethanol supply to OMCs was drawn from C-heavy molasses -a thick, dark by-product from which mills cannot economically recover any further sugar after three rounds of boiling and crystallisation.

From the 2018-19 supply year onward, the feedstock base widened. Mills began producing ethanol from intermediate-stage B-heavy molasses and directly from sugarcane juice and syrup, after the government began paying a higher price for ethanol made through these routes than for the conventional C-heavy route. This pricing incentive worked: ethanol supply to OMCs rose from 38 crore litres in 2013-14 to 190 crore litres in 2018-19, and the all-India average blending rate climbed from 1.6 per cent to 4.9 per cent over the same period.

The table below traces how the feedstock mix has changed over the life of the programme, based on official supply-year data reported in the Indian Express.

Supply Year	C-Heavy Molasses	B-Heavy Molasses	Cane Juice	Maize	Surplus FCI Rice	Damaged Foodgrain	Total (Crore Litres)
2013-14	38	0	0	0	0	0	38
2017-18	151	0	0	0	0	0	151
2018-19	146	33	1	0	0	10	190
2020-21	39	183	39	0	2	39	302
2022-23	6	235	128	32	74	32	507
2023-24	58	149	64	286	0	116	673
2025-26	12	110	166	479	233	48	1,048

Two things stand out from this trajectory. First, the scale of the programme has grown more than twenty-five-fold in little over a decade -from 38 crore litres in 2013-14 to roughly 1,048 crore litres allocated for the year ending October 2026. Second, and more significant for this discussion, the composition has flipped almost entirely. In 2023-24, total ethanol supply of 673 crore litres achieved an average blending level of 14.6 per cent, with grain-based feedstock alone contributing 402 crore litres, or 59.7 per cent of the total -a level that had never been reached before in the programme’s history. For the year ending October 2026, grain’s share is projected to rise further, to 72.5 per cent of a 1,048.3-crore-litre pool, while sugarcane-based feedstock supplies the remaining 27.5 per cent.

The Changing Feedstock Landscape: From Cane By-Product to Staple Grain

This reversal has an immediate cause: sugar economics. With domestic sugar prices elevated and stocks projected at a multi-year low heading into the 2026-27 supply year, it is unlikely that the government will permit ethanol production from direct cane juice or B-heavy molasses in that year. Mills will instead be pushed to recover the maximum possible sugar from cane juice, limiting ethanol production to the non-crystallisable sucrose left in C-heavy molasses -effectively reverting sugarcane’s role in the programme closer to where it started.

Sugar diversion into ethanol has nonetheless been a real and measurable draw on supply in recent years. According to Indian Express reporting, diversion through the B-heavy and cane-juice routes amounted to 2.2 million tonnes (mt) of cane-equivalent sugar in 2020-21, and 3.6 mt, 4.3 mt, 2.4 mt, 3.5 mt and 3 mt in the five sugar years that followed. The most recent figure of 3 mt represents roughly a tenth of India’s estimated gross sugar output of 30.9 mt in 2025-26 -a meaningful, if not overwhelming, share of national production.

With sugarcane’s contribution constrained, grain has filled the gap -and increasingly, that grain is rice drawn from FCI’s central pool. For the 2025-26 supply year, the government allocated 5.2 mt of surplus FCI rice to ethanol distilleries, a figure that was raised to 7.2 mt in July 2026. At a conversion rate of 450–460 litres of ethanol per tonne of rice, that additional allocation would yield roughly 325–330 crore litres. With sugar diversion curtailed and maize supply facing its own uncertainties (discussed below), Indian Express reporting notes that sustaining even the current E20 blending level -which requires around 1,050 crore litres of ethanol -would likely require earmarking still more FCI rice.

The Price Gap in FCI Rice for Ethanol

The economics of this route raise a separate question of value. FCI rice is sold to ethanol distilleries at Rs 23.2 per kg, with the auction reserve price for rice with 100 per cent broken grains set even lower, at Rs 21 per kg. For comparison, the Department of Consumer Affairs’ latest data puts the all-India modal retail price of normal rice at Rs 40 per kg and broken rice at Rs 30 per kg. Rice, in other words, is reaching distilleries at roughly half the price a consumer would pay for it in the open market -a gap that explains why the diversion of foodgrain into fuel remains a live point of scrutiny, even when it is framed as the use of genuinely surplus stock.

Maize: A Parallel Demand Story

Maize tells a related story from the demand side. Ethanol has become an important additional buyer for a crop that was historically used mainly for poultry feed, livestock feed and industrial starch. Indian Express reporting notes that wholesale maize prices rose from a range of Rs 13.8–17.8 per kg in 2021 to Rs 22.1–24.5 per kg in 2024, a period that coincides with maize’s rapidly growing role in the ethanol supply chain -its contribution rose from essentially zero before 2022-23 to 479 crore litres’ worth of feedstock allocated for 2025-26, on Table 1 above. Looking ahead to 2026-27, the same reporting flags that El Niño conditions, expected to persist through the first half of the year, could constrain maize availability just as sugarcane-based supply is also being curtailed -tightening the feedstock picture from two directions at once.

E20 and the Transition Challenge: What Higher Blends Mean for Vehicles

Alongside the feedstock question, industry commentary has raised a second, more technical concern: how well India’s existing vehicle fleet is suited to higher ethanol blends. It is worth being precise here about what is established fact and what is argument.

Ethanol’s basic chemical properties are well documented. It is hygroscopic -it absorbs atmospheric moisture -and its calorific value of roughly 6.4 kcal/g is markedly lower than petrol’s 10.3 kcal/g, a difference of about 35–38 per cent. A policy critique titled “The Ethanol Trap,” one of the reference documents behind this article, argues that this lower energy density causes E20 to reduce fuel efficiency by an estimated 3–6 per cent compared with pure petrol, and that moisture absorption can, over time, lead to phase separation in fuel tanks, corrosion of metal components, degradation of non-compatible rubber hoses, clogged filters and engine stalling -risks it argues are most relevant for an estimated 80 million legacy two-wheelers and a substantial number of cars built before the BS6 Stage II emission norms took effect in March 2023.

The same document also raises a more specific materials-engineering concern: that chloride contamination associated with the maize wet-milling process used at grain-based distilleries can increase stress-corrosion cracking in carbon steel fuel-system components, citing a 2013 study on chloride effects in simulated fuel-grade ethanol published in Electrochimica Acta. It further notes that, unlike Brazil or the United States, India does not currently offer motorists a choice of unblended or lower-blend fuel at the pump.

These are documented arguments from a critical policy commentary rather than settled, universally-accepted engineering conclusions, and readers should treat them as one side of an active debate rather than proven outcomes for every vehicle. What is not in dispute is the underlying chemistry -ethanol’s hygroscopic nature and lower calorific value relative to petrol -and the fact that India’s blending trajectory (E20 today, with E22 through E30 standards already notified) is moving faster than the natural replacement cycle of the country’s vehicle fleet. That gap between policy pace and fleet turnover is the crux of the transition challenge, whatever view one takes of its precise severity.

Food, Feed, Water and Fuel: The Resource Competition Question

The most consequential debate around India’s ethanol programme is the extent to which it competes with food, animal feed and water resources that have other, more immediate claims on them.

Food Security and the FCI Rice Question

“The Ethanol Trap” argues that diverting maize, damaged foodgrain and FCI rice stocks into ethanol production conflicts with the food security of the roughly 80 crore beneficiaries covered by India’s public distribution system, and that it also reduces feedstock available to the livestock sector, contributing to higher prices for sugar, milk, eggs and meat. This is presented in the document as a policy argument and risk rather than as a verified, quantified outcome, and it should be read as such. What can be stated as fact, based on the Indian Express reporting cited above, is the scale of the rice allocation itself -7.2 mt for 2025-26 -and the price at which that rice reaches distilleries relative to its open-market value.

Water-Intensive Cropping

A related concern raised in the same document is that cultivating rice, sugarcane and maize -all water-intensive crops -in hydrologically stressed regions such as Punjab, Haryana and western Uttar Pradesh is accelerating groundwater depletion. Again, this is presented as an argument in the source material rather than as an independently verified measurement within these documents, but it aligns with the broader, well-established agronomic reality that all three crops carry a high water footprint relative to alternatives such as millets.

A Possible Way Through: Alternative Feedstocks

The Indian Express analysis points to one practical option worth noting: millets such as bajra and jowar contain 58–62 per cent recoverable starch and can yield 380–400 litres of ethanol per tonne -comparable to maize -while requiring less water. Shifting a portion of grain-based ethanol demand toward such crops, the analysis suggests, could let millet farmers benefit from the kind of price realisation that maize growers have seen, without adding further pressure to India’s most water-stressed agricultural belts.The Environmental Dimension: What the EPI Ranking Says -and Doesn’t Say

Feedstock	Typical Route to Distillery	Price to Distillery	Comparable Market Price	Primary Concern Raised
Surplus FCI rice	Open Market Sale Scheme, Central Pool	Rs 23.2/kg (Rs 21/kg reserve for 100% broken)	Rs 40/kg (normal), Rs 30/kg (broken)	Discount to market value; PDS-linked stock
Maize	Open market procurement	Market-linked (rose ~60% from 2021 to 2024)	Competes with poultry & livestock feed, starch industry	Rising cost pressure on feed and food-processing sectors
Sugarcane (B-heavy/cane juice)	Sugar mill diversion	Government-incentivised pricing vs. C-heavy route	Diverted 2.2–4.3 mt of cane-equivalent sugar annually (2020-21 to 2025-26)	Reduces sugar output available for the market

Running alongside the feedstock debate is a separate but relevant thread: India’s persistently weak performance on Yale University’s Environmental Performance Index (EPI). In the 2026 assessment, released by the Yale Center for Environmental Law & Policy, India was ranked 176th out of 177 countries -the second-lowest position after Laos -with a score of 22.46 per cent, against a global-topping score of 74.79 per cent for Estonia. Within South Asia, India ranked seventh of eight countries assessed.

India’s EPI trajectory over the past decade has been one of consistent decline: from 141st in 2016 to 177th in 2018, 168th in 2020, and a low of 180th -the worst position among all countries assessed -in 2022, before settling at 176th in both 2024 and 2026. The country has remained within the five worst-performing nations on the index since 2022.

EPI Assessment Year	India’s Global Rank
2016	141st
2018	177th
2020	168th
2022	180th (lowest of all countries)
2024	176th
2026	176th (second-lowest, after Laos)

The 2026 assessment considered 47 indicators across 12 issue categories. India’s weakest categories were environmental health and biodiversity, both ranked 174th, and its comparatively stronger category was climate change, at 130th -also its most improved category, gaining 13.98 points over the past decade. Waste management and sanitation were both ranked 141st. Air quality has been a particular pressure point: India’s air-quality score actually slipped by 0.15 points over the decade, despite the country spending Rs 16,423 crore on the National Clean Air Programme since its launch in 2019.

It is important to represent the methodology debate accurately. When India received its lowest-ever EPI ranking in 2022, the Ministry of Environment, Forest and Climate Change (MoEFCC) formally rejected the findings, stating that the analysis contained “many indicators based on unfounded assumptions” and that some indicators were “extrapolated and based on surmises and unscientific methods.” Responding to similar criticism in 2026, Martin Wolf, the EPI’s Principal Investigator at Yale, said the index is designed to measure countries’ current environmental conditions rather than their stated policy intentions, and that India’s low score reflects performance across a range of issues -air quality, water quality, agriculture and fisheries -rather than climate change alone. He also acknowledged that historical, cumulative emissions, a factor the Indian government has previously raised, are not part of the EPI’s methodology.

Independent experts interviewed for the Down To Earth report offered a more measured middle ground. Anjal Prakash of FLAME University, Pune, described India’s low rank as “real but incomplete,” arguing that compressing a large, diverse, low-income country into a single cross-national score can overstate comparisons with wealthier nations that followed different historical development paths -while also noting that India’s poor showing is concentrated in a few high-impact indicators rather than reflecting universal underperformance. Nilanjan Ghosh of the Observer Research Foundation similarly cautioned that the index does not fully capture the developmental realities of a country at India’s scale and stage of economic transformation, while agreeing that the ranking should not be dismissed outright, since it highlights genuine and pressing concerns in air quality, urban environmental management, wastewater treatment and biodiversity conservation.

Why does this matter for a discussion about ethanol feedstock? Because one of the most direct levers connecting agricultural policy to air quality -India’s weakest and most stagnant EPI category -is what happens to crop residue after harvest. Large volumes of paddy straw are burned in fields across northern India each winter, a widely documented contributor to seasonal air pollution across the Indo-Gangetic plain. Any programme that gives farmers and industry a commercial reason to convert that residue into fuel, rather than burn it, addresses a fuel-supply objective and an air-quality objective simultaneously. That is precisely the logic behind second-generation ethanol.

Why Second-Generation (2G) Ethanol Matters

Conventional, or first-generation (1G), ethanol in India is made from the parts of a crop that also have food, feed or industrial value: sugarcane juice and molasses, and the starch in maize and rice grain. Every litre of 1G ethanol therefore carries some degree of competing claim from food, feed or sugar markets -which is exactly the tension explored in the sections above.

Second-generation, or 2G, ethanol is produced from a different category of raw material altogether: lignocellulosic biomass, the fibrous, non-food residue left over once the primary crop has been harvested. This includes paddy and wheat straw, sugarcane bagasse, corn stover, and other agricultural residues that are otherwise treated as waste -and, in large volumes across northern India, simply burned in the field. Because 2G feedstock is residue rather than the harvested grain or cane juice itself, converting it into ethanol does not draw directly on food, feed or sugar supply in the way 1G grain-based ethanol does, and it offers an additional environmental benefit by giving farmers and aggregators a commercial alternative to stubble burning.

India’s ethanol story has moved faster than almost anyone expected. What was once a modest 5 percent blending target has turned into a nationwide E20 rollout, achieved five years ahead of the original 2030 deadline. Petrol pumps across the country now dispense fuel with one-fifth ethanol content, farmers are earning from a new revenue stream, and the country’s oil import bill has a little more breathing room.

But 2026 has also been the year this success story met an uncomfortable question. Sugar prices have surged. The government has swung from approving sugar exports to banning them, and then to opening a rare duty-free import window. Food-grain stocks meant for welfare schemes are being sold to ethanol distilleries. And economists are now openly asking whether India’s fuel ambitions are beginning to compete with its food security goals.

The central question this raises is simple to ask and hard to answer: can India keep expanding ethanol blending without putting sustained pressure on the crops, land and grain stocks the country depends on for food?

This article looks at what is actually happening to sugar, rice and maize as ethanol demand grows, separates confirmed facts from contested claims, and examines why second-generation (2G) ethanol -made from crop waste rather than food crops -is increasingly being presented as the way out of this bind.

India’s Ethanol Ambitions: How E20 Arrived Early

India’s ethanol blending programme was designed around a straightforward logic: the country imports roughly four-fifths of its crude oil, and every litre of petrol replaced with domestically produced ethanol is a litre of crude that does not need to be shipped in. Blending also gives sugarcane and grain farmers an additional buyer for their produce, alongside the food and sugar markets.

The pace of progress has been striking. India reached its 20 percent ethanol-blending target during the 2025-26 ethanol supply year, five years ahead of the original 2030 schedule. Ethanol supplied to oil marketing companies rose from roughly 1.73 billion litres in 2019-20 to a projected 12 billion litres in 2025-26 -a compound annual growth rate of around 38 percent, according to research cited by an ICRIER working paper reported in the business press. The government has also pointed out that ethanol blending is not an Indian experiment in isolation; countries including the United States, Brazil, Canada, Thailand, Japan and several European nations have used ethanol-blended fuels for decades.

That speed is precisely what has raised questions about supply. Feedstock production has not grown anywhere near as fast as ethanol demand. The same ICRIER analysis notes that while ethanol offtake grew at roughly 38 percent annually, maize production grew about 11.4 percent a year over the same period and sugarcane closer to 5.1 percent. When the fuel side of the equation expands several times faster than the farm side, something eventually has to give -and that something has, at various points in 2026, been sugar availability, grain stock levels and, briefly, maize imports.

When Food Crops Meet Fuel Demand

Ethanol in India is not made from a single feedstock. Distilleries draw on sugarcane juice, B-heavy and C-heavy molasses, surplus rice released by the Food Corporation of India (FCI), maize, and damaged food grains. Each of these has an existing role in the food chain before it is diverted to a fermentation tank.

• Sugarcane and its by-products feed both the sugar industry and, increasingly, ethanol distilleries.
• Rice is a staple food, a Public Distribution System (PDS) commodity, and now also an ethanol feedstock when FCI stocks are deemed surplus.
• Maize is used for poultry and animal feed, human consumption and industrial starch production, in addition to ethanol.

As long as feedstock supply comfortably exceeds these competing demands, the trade-off stays theoretical. The trouble starts in years when a crop underperforms -due to weather, pest pressure or lower acreage -at exactly the point when ethanol offtake keeps climbing on a fixed policy trajectory. That mismatch, rather than ethanol demand in isolation, is what has driven most of 2026’s food-versus-fuel headlines.

India’s Sugar Squeeze: What Actually Happened in 2026

Sugar has been the most visible flashpoint. Early projections for the 2025-26 sugar season were optimistic: the Indian Sugar and Bio-energy Manufacturers Association (ISMA) initially projected gross production increasing sharply on the back of better yields in Maharashtra and Karnataka, and the government approved sugar exports of up to roughly 1.5 to 2 million tonnes in November 2025 based on those expectations.

Through the season, however, the numbers were revised downward. ISMA’s July 2025 forecast of close to 34.9 million tonnes gave way to independent industry estimates closer to 27.9 to 29.3 million tonnes of net production after ethanol diversion, as actual cane yields in Uttar Pradesh and Maharashtra fell short of expectations due to weather-related factors. Roughly 2.4 to 3.4 million tonnes of cane-equivalent sugar was diverted to ethanol during the season, according to different industry estimates.

The government’s own SOP for the sugar sector follows a “switch on/switch off” principle: sugarcane juice can be diverted to ethanol only in years of surplus sugar production, and this diversion was reportedly disallowed for part of the 2024-25 ethanol year when supplies were tighter, according to industry submissions cited in trade reporting.

As the production picture weakened, retail sugar prices moved sharply. Reporting based on the ICRIER paper puts the rise at roughly 44 percent -from about ₹45 per kilogram in July 2026 to around ₹65 per kilogram by 29th August 2026 -while other reports describe a roughly 40 percent increase over a similar window. The government responded on two fronts. In May 2026, it moved sugar exports from the “restricted” to the “prohibited” category until 30th September 2026, reversing its earlier export approvals. Then, on 20th August 2026, it took the more unusual step of permitting duty-free imports of up to 1 million tonnes of raw sugar under a Tariff Rate Quota until 31st October 2026 -reportedly the first such window in nearly a decade for the world’s largest sugar-consuming country. Stockholding limits on dealers, effective from 1st August to 30th November 2026, were also introduced to curb hoarding and speculative accumulation.

It would be an overstatement to say ethanol diversion alone caused this price spike. The ICRIER researchers themselves point to a combination of low opening stocks, weaker-than-expected production and continued ethanol diversion arriving together, rather than any single factor. Weather-driven yield shortfalls in India’s two largest cane-growing states were a major contributor. What the episode does show is that India’s ethanol targets currently function as a relatively fixed commitment, while sugar output varies year to year -and when both come under pressure at once, consumers feel it directly in retail prices.

Agricultural Land: Growing Food or Growing Fuel?

A slower-moving concern sits behind the sugar headlines: could rising ethanol demand gradually pull land and farmer choices away from food crops? For sugarcane, the picture so far looks more like intensification than large-scale land conversion -ISMA data shows cane acreage rising only marginally between the 2024-25 and 2025-26 seasons, with most of the additional cane-equivalent supply coming from better yields and recovery rates rather than new area.

Maize tells a more layered story. National industry and policy commentary notes that ethanol-linked maize cultivation has expanded substantially, partly on Zaid (summer) season land that would otherwise often lie fallow, helping national maize output rise from around 31.6 million tonnes in 2020-21 to roughly 42.3 million tonnes in 2024-25. At the same time, growing ethanol and animal-feed demand has been cited as a factor behind India’s emergence as a net maize importer in recent years -a reminder that even residue-friendly framing (“grown on land that would lie fallow”) does not fully eliminate competing demand pressure once a crop is drawn into multiple markets at once.

The long-term risk analysts flag is less about a dramatic land grab and more about incentives: if ethanol procurement prices make a crop more attractive relative to food-grain cultivation, farmers will rationally respond over time by adjusting what they grow, which could gradually tighten food-grain supply if not monitored and balanced with agricultural planning.

The Debate Over Subsidised Rice for Fuel

Perhaps the sharpest political and ethical debate concerns the use of FCI rice -some of it originally procured for welfare and food-security schemes -as an ethanol feedstock. The government’s position is that only surplus rice from the Central Pool, left over after meeting obligations under the National Food Security Act, other welfare schemes and prescribed buffer-stock norms, is sold to distilleries under the Open Market Sale Scheme. Officials have told Parliament that roughly 44.2 lakh tonnes of surplus rice had been supplied for ethanol till 30th June in ESY 2025-26, and that this diversion has had no impact on food inflation or food security.

Critics, including opposition lawmakers, have questioned this framing on cost grounds rather than pure availability grounds. FCI rice is sold to ethanol distilleries at an issue price of ₹2,320 per quintal (rising to ₹2,390 per quintal from later in the cycle), against FCI’s own estimated economic cost of roughly ₹4,100 to ₹4,170 per quintal for the same grain. That gap implies a substantial implicit public subsidy is embedded in every tonne of food-security rice routed to fuel production -a concern raised prominently by state and opposition politicians in public remarks and reported by regional media.

Two claims can both be broadly true at once: FCI’s rice stocks have, at various points, run well above mandated buffer norms (one analyst report put stocks at roughly four times the buffer norm in 2025), and diverting rice at a steep discount to its economic cost still represents a real fiscal and opportunity cost that deserves scrutiny.

The more balanced reading of the evidence available is this: outright grain scarcity does not appear to be the immediate risk in a year of comfortable FCI stocks, but the pricing structure of the rice-for-ethanol scheme -and the precedent it sets for years when stocks are tighter -is a legitimate and ongoing policy debate rather than a settled question either way.

Why Ethanol Still Matters for India

None of this amounts to a case against ethanol blending itself. The programme addresses real and pressing national priorities, and dismissing it outright would ignore its documented benefits.

• Energy security: every litre of ethanol blended is a litre of petrol that does not have to be refined from imported crude, in a country that imports the large majority of its crude oil needs.
• Farmer income and cash flow: ethanol revenue gives sugar mills a steadier income stream that is less exposed to global sugar price swings, which industry commentary credits with helping mills clear cane-arrears backlogs to farmers more quickly.
• Emissions: ethanol combustion is associated with lower greenhouse-gas and certain tailpipe emissions compared with pure petrol, supporting India’s broader climate commitments.
• Rural economic activity: distillery investment, feedstock aggregation and allied logistics create economic activity beyond the farm gate.

The government has also pushed back on some of the more alarmist claims circulating about E20 -including on vehicle safety -pointing to Automotive Research Association of India (ARAI) trials covering tens of thousands of kilometres in cars and two-wheelers that found no significant adverse impact on vehicle performance from the blend. The honest conclusion is that ethanol blending is neither an unqualified success story nor a policy mistake; it is a genuine trade-off that needs active, adaptive management rather than a fixed target pursued regardless of yearly farm conditions.

The Better Path: What Second-Generation (2G) Ethanol Changes

This is where second-generation, or 2G, ethanol enters the conversation as a genuine structural solution rather than a talking point. Conventional (first-generation, or 1G) ethanol in India is produced from sugarcane juice, molasses, rice, maize and other food or feed crops -resources with an existing claim on the food chain. 2G ethanol, by contrast, is produced from lignocellulosic biomass: the non-food, fibrous parts of plants that are otherwise treated as waste.

• Rice straw and wheat straw left over after harvest
• Sugarcane bagasse (the fibrous residue after juice extraction)
• Corn stover and other crop residues
• Other agricultural and forestry waste

Because these materials are residues rather than the primary harvested crop, converting them to ethanol does not compete directly with food, feed or sugar markets in the way that diverting rice, maize or cane juice does. Rice straw in particular carries an additional environmental upside: large volumes of it are currently burned in fields across northern India after harvest, a major contributor to seasonal air pollution in the Indo-Gangetic plain. Diverting even a portion of this residue into ethanol production addresses two problems -fuel supply and crop-residue burning -with one feedstock stream.

India’s policy architecture for 2G ethanol already exists. The Pradhan Mantri JI-VAN Yojana (Jaiv Indhan-Vatavaran Anukool fasal awashesh Nivaran Yojana), launched in 2019, provides viability-gap funding to commercial and demonstration-scale 2G bio-ethanol projects, with a scheme outlay of roughly ₹1,969.5 crore and its timeline since extended to 2028-29. India’s first commercial 2G ethanol plant, set up by Indian Oil Corporation at Panipat in Haryana, was inaugurated in August 2022 and produces ethanol from paddy straw, directly targeting the stubble-burning problem in Punjab and Haryana. Additional public-sector projects by BPCL, HPCL and Numaligarh Refinery have been progressing at Bargarh (Odisha), Bathinda (Punjab) and in Assam.

Why 2G Ethanol Hasn’t Scaled Up Yet

If 2G ethanol solves the food-versus-fuel problem so cleanly on paper, the natural question is why it still supplies only a small fraction of India’s ethanol pool. The honest answer is that the technology remains genuinely difficult and expensive to run at scale.

Challenge	Why It Matters
Higher capital and conversion costs	Both the plant cost and the per-litre conversion cost of 2G ethanol are significantly higher than conventional molasses- or grain-based (1G) production.
Complex biomass pre-treatment	Lignocellulosic material must go through processes such as acid hydrolysis or steam explosion before fermentation, requiring specialised equipment and enzymes that add cost.
Biomass collection and logistics	Crop residue is bulky, seasonal and scattered across millions of small farms, making year-round, cost-effective collection and transport to a central plant difficult.
Limited operating commercial capacity	Only a handful of commercial-scale 2G plants are operational or nearing completion in India so far, well short of the number needed to meaningfully shift the feedstock mix.
Competing incentives	India has already built substantially more conventional (1G) ethanol distillation capacity than E20 currently requires, which reduces the immediate commercial urgency to invest in costlier 2G capacity

None of these challenges are unique to India -2G biofuel technology has been commercially difficult to scale in most parts of the world for similar reasons. But they do explain why 2G ethanol remains a small supplement to, rather than a replacement for, conventional feedstocks in the near term.

The Way Forward: A Smarter, Adaptive Ethanol Strategy

The 2026 sugar episode has produced a useful, if uncomfortable, lesson: a fixed blending target pursued without regard to yearly agricultural conditions can create avoidable stress on food prices. Researchers behind the ICRIER analysis, rather than calling for India to abandon E20, have argued for retaining the target but making the feedstock policy more adaptive -reducing sugar diversion in tight years, restricting FCI rice use to genuine surplus stock, and treating temporary imports as a legitimate stabilising tool rather than a policy failure.

• Build in explicit, pre-announced flexibility to scale back sugarcane and rice diversion in years of weak harvests, rather than adjusting reactively after prices spike.
• Accelerate 2G ethanol investment through continued viability-gap funding, faster clearances, and support for biomass aggregation infrastructure connecting small farms to processing plants.
• Prioritise rice straw and other residue-based feedstocks in regions already struggling with crop-residue burning, aligning fuel policy with air-quality goals.
• Maintain transparent, regularly updated public reporting on feedstock allocation, buffer-stock levels and diversion volumes, so that policy debates are grounded in current data rather than outdated assumptions.
• Continue supporting maize diversification carefully, monitoring its knock-on effects on poultry feed costs and India’s net trade position in the crop.

Executed this way, ethanol blending and food security are not necessarily locked in a zero-sum contest. The tension shows up specifically when a fixed fuel target meets a variable harvest, and when food-grade feedstocks are used as the default buffer rather than the last resort.

Conclusion: From Food Crops for Fuel to Waste for Fuel

India’s ethanol programme has delivered on its core promise faster than almost anyone predicted, and it continues to serve real national interests in energy security, farmer income and emissions reduction. But 2026 has also shown that treating ethanol targets as untouchable, regardless of how a given crop year performs, carries a real cost -one that shows up first in the price of sugar on a kitchen shelf.

The more durable answer is not to slow down India’s clean-fuel ambitions, but to change what fuels them. A steady shift in emphasis -from food and feed crops toward agricultural residues that would otherwise be burned or wasted -offers a way to keep expanding ethanol supply without repeatedly testing the limits of food security. That shift will not happen overnight, given the cost and infrastructure hurdles 2G ethanol still faces. But the direction is clear enough: India’s next phase of ethanol growth should increasingly come from what farms leave behind, not from what they are meant to feed the country with.

Frequently Asked Questions

1. Did ethanol blending alone cause India’s 2026 sugar price rise?

No single factor was solely responsible. Analysts point to a combination of weaker-than-expected cane yields in Uttar Pradesh and Maharashtra, low opening stocks, and continued ethanol diversion arriving in the same season. Ethanol diversion added to the pressure but was not the sole cause.

2. Is India currently short of rice or facing a grain crisis because of ethanol?

Available data suggests FCI’s rice stocks have generally remained well above mandated buffer norms, and only surplus stock is officially meant to be diverted to ethanol. The more contested issue is the steep discount at which this rice is sold to distilleries relative to its economic cost, not outright grain scarcity.

3. Is India importing sugar because of ethanol diversion?

In August 2026, India allowed duty-free imports of up to 1 million tonnes of raw sugar until 31 October 2026 to ease tight domestic supply and rising prices. This followed an export ban imposed in May 2026 after production estimates were revised down due to weather-related yield shortfalls, with ethanol diversion as one contributing factor among several.

4. What is 2G ethanol, in simple terms?

Second-generation ethanol is made from agricultural residues and waste -such as rice straw, wheat straw and sugarcane bagasse -rather than from food or feed crops. Because these are by-products rather than the harvested crop itself, 2G ethanol avoids much of the direct competition with food supply that conventional ethanol production can create.

5. Why hasn’t India scaled up 2G ethanol faster?

2G ethanol production involves higher capital costs, complex biomass pre-treatment technology, and difficult logistics for collecting scattered crop residue from millions of small farms. India has also already built more conventional ethanol capacity than current blending targets require, reducing the immediate commercial pressure to invest in costlier 2G plants.

6. Does using food grains for ethanol threaten India’s food security?

The government maintains that only surplus stock, released after meeting welfare-scheme and buffer-stock obligations, is used, and that this has not affected food security to date. Critics argue the underlying subsidy structure and the precedent for tighter years deserve closer scrutiny, even if current stock levels are comfortable.

7. Should India slow down its E20 rollout?

Most research on the subject, including the ICRIER analysis referenced above, recommends retaining the E20 target but making feedstock allocation more adaptive to yearly farm conditions, rather than abandoning the blending programme altogether.

8. What are the real benefits of ethanol blending for India?

Reduced dependence on imported crude oil, additional and steadier income for sugarcane and grain farmers, lower emissions compared with pure petrol, and support for India’s broader energy-security and climate goals.

India’s ethanol-blending programme has reached an important stage. E20 petrol is becoming increasingly common, helping the country reduce its dependence on imported fossil fuels while creating new opportunities for farmers and the biofuel industry.

But India’s vehicle fleet is not uniform.

Newer vehicles are designed with modern electronic fuel-management systems and are better equipped to handle higher ethanol blends. At the same time, millions of older vehicles, particularly pre-BS4 two-wheelers using carburettors, were designed around lower ethanol blends and can face compatibility challenges with E20.

This raises an important policy question:

Should India apply one ethanol blend to every vehicle, regardless of when it was manufactured and what fuel system it uses?

A more practical approach would be to introduce a phased transition: E10 for older, non-compatible vehicles and E20 for newer, compatible vehicles, while gradually phasing older vehicles out of the fleet.

This would not mean abandoning India’s ethanol programme. It would mean managing the transition more intelligently.

Why India Needs a Phased Ethanol Rollout

The objective of ethanol blending is not simply to increase the percentage of ethanol in petrol. The larger goals include reducing crude-oil imports, improving energy security, supporting agricultural incomes and reducing the environmental impact associated with conventional fuels.

However, the transition has to account for the vehicles already on Indian roads. Older vehicles were built using fuel-system technologies that differ significantly from those found in modern cars and motorcycles. Many older two-wheelers, particularly pre-BS4 models, use carburettors rather than electronically controlled fuel injection.

This distinction matters. A vehicle designed for E10 cannot automatically be assumed to respond to E20 in exactly the same way as a modern vehicle designed around electronic fuel management. That is why a vehicle-linked approach makes sense:

• E10 for older vehicles that are not designed for higher ethanol blends
• E20 for newer, compatible vehicles
• A gradual phase-out of older vehicles
• Greater use of 2G ethanol to reduce food-versus-fuel pressure

The aim should be a transition rather than a sudden switch.

The E10 Option for Older Vehicles

One of the key arguments emerging from the current ethanol debate is that E10 could continue to be made available for older vehicles while E20 remains the standard for newer vehicles. This is particularly relevant to older carburetted two-wheelers.

This view has gained wider traction recently. India’s Chief Economic Advisor has called for E10 petrol to remain available for older vehicles, a caution echoed in commentary that has argued for bringing back E10 for older vehicles while working out the food-versus-fuel trade-off.

The concern is not simply that ethanol is inherently unsuitable for vehicles. The bigger issue is whether a particular vehicle’s fuel system, materials and calibration were designed to operate with a higher ethanol concentration.

For an older vehicle, continuing to provide an E10 option could offer a practical bridge while the vehicle remains on the road. Over time, however, this should not become a permanent exemption.

The Key Principle The purpose of E10 availability should be to manage the transition while the older fleet gradually declines, not to maintain an indefinitely separate fuel system.

The E20 Problem Is More Specific Than It Appears

The debate around E20 is sometimes presented as though all older vehicles will automatically experience the same problems. The reality is more specific. Two areas deserve particular attention:

• Carburettor-based fuel systems
• Older fuel-system materials such as rubber seals, gaskets and fuel lines

1. Carburettors and E20

A carburettor is primarily a mechanical fuel-metering device. Unlike a modern electronically controlled system, it does not continuously monitor engine conditions and calculate the appropriate amount of fuel based on sensor data.

Ethanol has a different chemical and energy profile from petrol and also carries additional oxygen. When the fuel composition changes, an older carburettor may not be able to compensate automatically. As a result, a vehicle that was calibrated for a lower ethanol blend may operate differently when exposed to E20.

The important point is that this is largely a technology and compatibility issue, rather than evidence that E20 is unsuitable for every petrol vehicle. Industry commentary has narrowed this concern down specifically to carburetted, mainly pre-BS4, two-wheelers, rather than the wider petrol fleet. This is a fast-evolving area, and a closer, data-backed look at

exactly which vehicle segments are affected is a subject Khaitan Bio Energy plans to explore further in an upcoming blog.

2. Older Rubber Components

Older vehicles may also contain fuel-system components made from materials that were not designed for prolonged exposure to higher ethanol concentrations. Fuel lines, seals and gaskets can be affected over time depending on the materials used and the vehicle’s design.

Some of these components can be replaced with ethanol-compatible alternatives. However, carrying out such modifications across millions of older vehicles would take considerable time and investment. That makes a lower ethanol blend such as E10 a practical transition option for vehicles that have not yet been upgraded or retired.

Why Modern Vehicles Are Different: ECU and MPFI

The fuel systems used in modern vehicles are fundamentally different from older carburetted systems. Most newer petrol vehicles use an Engine Control Unit (ECU) together with an electronic fuel-injection system such as Multi-Point Fuel Injection (MPFI).

The ECU is essentially the digital brain of the engine. It continuously receives information from sensors, processes that information using programmed maps and algorithms, and sends commands to different engine components, allowing the engine to adjust its operation in real time.

How an ECU Works

The ECU’s operation can be understood in three basic stages.

1. Data Gathering

The ECU receives continuous information from sensors monitoring factors such as airflow, engine speed, engine temperature, coolant temperature, throttle position, and other engine operating conditions.

2. Calculation

The ECU processes this information using programmed maps and algorithms. It calculates how much fuel the engine needs and when the ignition spark should occur under the current operating conditions.

3. Actuation

The ECU then sends electrical commands to components such as fuel injectors, ignition coils, idle-control components, and other emissions-related systems. This process happens continuously while the engine is operating.

The Core Difference A carburettor relies largely on fixed mechanical characteristics. An ECU can measure, calculate and adjust.

What Does the ECU Control?

Fuel Injection

The ECU controls the duration for which a fuel injector remains open, commonly referred to as injector pulse width. This allows the system to maintain the appropriate air-fuel mixture under different engine loads and speeds.

Ignition Timing

The ECU also determines when the spark should occur. Correct ignition timing helps the engine produce power efficiently while reducing the risk of unwanted combustion or engine knocking.

Emissions and Diagnostics

Modern ECUs also monitor emissions-related components and engine sensors. When something operates outside the expected range, the system can record a diagnostic trouble code (DTC), which can help technicians identify the problem. This diagnostic capability is another major advantage over older mechanical fuel systems.

What Is MPFI?

MPFI stands for Multi-Point Fuel Injection. An MPFI engine uses a separate fuel injector for each cylinder. Instead of relying on a carburettor to create and distribute a fuel-air mixture mechanically, the system uses electronically controlled injectors to deliver a precise quantity of fuel into the intake port associated with each cylinder. The ECU determines how much fuel is required and controls the injectors accordingly.

How MPFI Works

Sensors  →  ECU  →  Fuel Injectors  →  Engine

• Sensors: monitor conditions such as engine speed, airflow and temperature.
• ECU: processes the sensor information and calculates the required fuel quantity.
• Injectors: each delivers the calculated amount of fuel into its respective intake port.

Because this process is electronically controlled, the system can adjust fuel delivery as engine conditions change.

Types of MPFI Systems

Sequential Injection

Each injector operates individually and is timed according to the engine’s intake cycle. This provides highly precise fuel delivery.

Batch Injection

The injectors operate in groups rather than completely independently. Several cylinders receive fuel during the same injection event.

Simultaneous Injection

All injectors operate at the same time. This is a simpler approach, although it provides less individual timing control than sequential injection.

Advantages and Disadvantages of MPFI

Compared with traditional carburettor systems, MPFI offers several advantages: better fuel control, improved fuel economy, faster throttle response, smoother engine operation, more consistent idling, lower emissions, and better adaptation to changing operating conditions.

It also has trade-offs: higher repair costs, more complex wiring, greater dependence on electronic components, and sensors that can be more expensive to replace than a carburettor’s mechanical parts.

Despite these drawbacks, the electronic control provided by MPFI and the ECU is precisely what makes modern vehicles better equipped to manage changes in fuel composition.

Carburettor vs ECU + MPFI

Feature	Feature	ECU + MPFI
Fuel metering	Mechanical	Electronic
Sensor-based adjustment	Limited or none	Continuous
Fuel delivery	Shared mechanical mixture	Individually controlled injectors
Response to changing conditions	Limited	Real-time adjustment
Fuel efficiency	Generally lower	Generally better
Diagnostics	Very limited	Electronic diagnostic capability
E20 compatibility	Depends heavily on vehicle design	Modern systems are generally better equipped

The E20 compatibility debate should focus on the specific vehicle technology, rather than treating every petrol vehicle as identical.

The Food-versus-Fuel Question

The ethanol debate does not end with vehicle compatibility. There is another important issue: where the ethanol comes from.

India’s ethanol production can involve feedstocks such as sugarcane, maize, rice and other agricultural products. These resources have competing uses. Maize, for example, is important not only as an ethanol feedstock but also as animal feed. Agricultural land and water are also finite resources.

As ethanol blending targets increase, India therefore needs to consider the potential trade-off between food, feed, water and fuel. This is why the next stage of India’s ethanol programme should not focus exclusively on increasing the blending percentage. It should also focus on developing better feedstocks.

Why 2G Ethanol Matters

This is where second-generation, or 2G, ethanol becomes particularly important. Unlike conventional ethanol that can rely heavily on food and feed crops, 2G ethanol can be produced from lignocellulosic agricultural residues, including rice straw, agricultural waste, bagasse and other crop residues.

These materials are not primarily grown for food. Instead, they are residues generated during agricultural production. Using them for ethanol creates an opportunity to increase fuel production without placing the same direct pressure on food crops.

Rice Straw: From Agricultural Waste to Fuel

Rice straw is a particularly important example. Large quantities of rice residue are generated every year. Where farmers do not have economically viable alternatives, some of this residue can be burned in fields, contributing to air pollution.

Converting rice straw into 2G ethanol can address two problems simultaneously:

Agricultural Residue  →  2G Ethanol  →  Renewable Fuel

At the same time, it can reduce dependence on food and feed crops as ethanol feedstocks. This makes 2G ethanol an important part of the long-term solution to the food-versus-fuel challenge.

Phasing Out Older Vehicles

Providing E10 for older vehicles can solve the immediate compatibility problem. But it cannot be the entire solution.

If India wants to move toward a predominantly E20-compatible fleet, the number of vehicles requiring E10 must gradually decline. That means the fuel transition needs to be connected with India’s vehicle replacement and scrappage policies. Older vehicles should not remain on the road indefinitely simply because E10 remains available. Instead, India could combine:

• Fitness testing
• Emission standards
• Scrappage incentives
• Replacement incentives
• Affordable access to newer vehicles
• A defined transition period for E10

The objective should be to make the transition predictable for vehicle owners.

E10 Should Be a Bridge, Not a Permanent Exception

A well-designed E10 programme for older vehicles should have a clear purpose. It should act as a bridge between two vehicle generations. As older carburetted vehicles leave the road through normal replacement and scrappage, the need for E10 should decline. At the same time, newer ECU- and fuel-injection-equipped vehicles can increasingly operate on E20. This creates a natural transition:

Older Fleet  →  E10  →  Replacement / Retirement  →  Newer Fleet  →  E20

That is a more practical approach than forcing every vehicle onto the same fuel blend overnight.

What a Phased E10-to-E20 Rollout Could Look Like

A practical transition could include the following steps:

Step	What It Involves
1	E10 for older, non-compatible vehicles: continue making E10 available for vehicles not designed for higher ethanol blends, particularly vulnerable carburetted two-wheelers.
2	E20 for newer vehicles: keep E20 as the standard fuel for newer vehicles designed and certified for the blend.
3	Gradually reduce the E10 fleet: the E10 allocation should shrink as older vehicles leave the road, not remain fixed.
4	Strengthen scrappage and fitness policies: apply progressively stronger fitness and emissions requirements to older, less-compliant vehicles, paired with attractive replacement incentives.
5	Support retrofits where practical: offer affordable, ethanol-compatible fuel-system upgrades for roadworthy older vehicles as an alternative transition path.
6	Accelerate 2G ethanol: expand agricultural-residue-based ethanol capacity so future blending targets don’t add pressure to food, feed and water resources.

A Better Way to Think About India’s Ethanol Transition

The debate should not be framed as E10 vs E20. It should be framed as: how do we move an entire vehicle fleet from one fuel technology to another without leaving millions of existing vehicle owners behind? That requires two transitions happening together.

Transition One: The Vehicle Fleet

Older carburetted vehicles gradually move toward:

E10  →  Retrofit or Replacement  →  E20-Compatible Vehicle

Transition Two: The Ethanol Feedstock Base

India gradually moves from greater dependence on conventional agricultural feedstocks toward:

Food / Feed Crops  →  Greater Use of Agricultural Residues  →  Stronger 2G Ethanol Capacity

These two transitions complement each other. A cleaner and more compatible vehicle fleet addresses the demand side. A larger 2G ethanol industry addresses the supply-side food-versus-fuel challenge.

Where Khaitan Bio Energy Fits In

For India’s ethanol programme to continue expanding sustainably, the country will need ethanol production pathways that do not place unnecessary pressure on food and feed resources. This is where Khaitan Bio Energy’s focus on second-generation bioethanol from agricultural residues becomes relevant.

Khaitan Bio Energy’s technology is designed to convert lignocellulosic agricultural residue, including rice straw, into 2G bioethanol. The opportunity is significant: agricultural waste that might otherwise be burned or underutilised can become a source of renewable fuel.

The company’s technology has been certified at Technology Readiness Level 8 (TRL-8) by the Department of Biotechnology, Government of India, evaluated by the Centre for High Technology under the Ministry of Petroleum and Natural Gas, and selected for commercial deployment under the PM JI-VAN Yojana.

As India’s ethanol programme moves into its next phase, increasing ethanol supply alone will not be enough. The country also needs to ask what feedstocks should supply that ethanol. If the answer increasingly includes agricultural residues, India can expand its ethanol capacity while addressing waste management, rural value creation and the food-versus-fuel challenge at the same time.

To learn more about Khaitan Bio Energy’s 2G bioethanol technology, visit khaitanbioenergy.com.

Conclusion: Phasing Ethanol Is About Managing the Transition

India does not have to choose between its ethanol ambitions and the millions of older vehicles already on its roads. A phased approach can address both.

E10 can provide a transition fuel for older, non-compatible vehicles. E20 can remain the standard for newer, compatible vehicles. Older vehicles can gradually be retired or upgraded. And 2G ethanol can expand the country’s fuel supply without putting the same pressure on food and feed crops.

The important distinction is that the problem is not simply “E20 versus old vehicles.” It is a question of vehicle technology, fuel compatibility, fleet turnover and feedstock sustainability. Carburettor-based vehicles and modern ECU-MPFI vehicles do not manage fuel in the same way. Treating them as though they do risks creating unnecessary disruption.

A smarter ethanol strategy would therefore phase the transition according to the technology already on India’s roads. At the same time, India should accelerate 2G ethanol so that increasing blending does not simply mean diverting more food and feed resources toward fuel.

The long-term objective remains clear: a modern, E20-compatible vehicle fleet supported by a sustainable ethanol industry that increasingly turns agricultural waste into fuel. That is not a retreat from ethanol blending. It is a more practical way to make the transition work.

References

This article draws on the following recent reporting and commentary on India’s ethanol-blending policy:

• CEA Calls For E10 Petrol For Older Vehicles – NewsBytes
• Bring Back E10 For Older Vehicles: Work Out The Food-Versus-Fuel Trade-Off – The Indian Express
• CEA Urges Caution On Higher Ethanol Blending, Backs E10 Option For Older Two-Wheelers – Chini Mandi

Frequently Asked Questions

1. Why should E10 be available for older vehicles?

Older vehicles, particularly pre-BS4 carburetted two-wheelers, may not have been designed or calibrated for higher ethanol blends. Maintaining an E10 option during the transition can provide a compatible fuel while these vehicles are gradually replaced, retired or upgraded.

2. Why do carburettor vehicles have more difficulty with E20?

Carburettors use mechanical fuel metering and cannot continuously adjust fuel delivery based on sensor data. A modern ECU-controlled system can make real-time adjustments based on engine conditions, whereas a traditional carburettor has much less ability to compensate for changes in fuel composition.

3. What is an ECU?

An Engine Control Unit is the electronic computer that manages important engine functions. It receives information from sensors, calculates the required fuel and ignition settings, and sends commands to components such as fuel injectors and ignition coils.

4. What is MPFI?

MPFI stands for Multi-Point Fuel Injection. It uses separate injectors for individual engine cylinders and electronically controls the amount of fuel delivered to each intake port.

5. Is E20 a problem for all petrol vehicles?

No. Compatibility depends on the vehicle’s design, fuel system, materials and manufacturer specifications. Modern vehicles designed for E20 are fundamentally different from older carburetted vehicles that were built around lower ethanol blends.

6. What is the food-versus-fuel issue?

Some ethanol feedstocks, including maize, sugarcane and grains, also have important food or animal-feed uses. Increasing ethanol production from these crops can therefore create competing demands for agricultural resources.

7. How can 2G ethanol help?

2G ethanol uses lignocellulosic agricultural residues such as rice straw and bagasse. This can increase ethanol production while reducing direct dependence on food and feed crops.

8. Why should older vehicles eventually be phased out?

If E10 remains available indefinitely for every older vehicle, the transition to an E20-compatible fleet could remain incomplete. A combination of vehicle fitness testing, scrappage incentives, replacement programmes and a defined E10 transition period can gradually reduce the number of vehicles requiring lower-blend fuel.

9. Does supporting E10 mean India should abandon E20?

No. A phased E10-E20 approach is not a rejection of ethanol blending. It is a way of managing the transition between older vehicles that may require a lower blend and newer vehicles designed for higher ethanol blends.

10. What is the long-term goal?

The long-term goal should be a vehicle fleet that is compatible with higher ethanol blends, supported by an ethanol industry increasingly based on sustainable feedstocks such as agricultural residues.

For a decade, India’s ethanol story had one metric that mattered: the blending percentage in petrol. That number went from 1.5% in 2014 to 20% by mid-2025, nearly five years ahead of schedule, saving the exchequer more than ₹1.44 lakh crore in forex and routing over ₹1.18 lakh crore directly to farmers. By any measure, the Ethanol Blending Programme (EBP) has been one of India’s more effective energy policies of the last ten years.

That chapter is now closing, and a very different one is opening. In 2026, the Ministry of Petroleum and Natural Gas has been working on a policy framework, expected to be finalised by September 2026, to push ethanol into household kitchens as a mainstream cooking fuel. The Ministry has amended the definition of Aviation Turbine Fuel to admit ethanol-derived synthetic hydrocarbons, clearing a path for Sustainable Aviation Fuel (SAF). Oil marketing companies have been told to pilot ethanol dispensing kiosks -dubbed “ethanol ATMs” at fuel retail outlets. Flex-fuel vehicles, ethanol exports to Nepal, Bangladesh and Indonesia, and industrial applications are all part of the same conversation.

Every one of these moves is, on its own, a reasonable response to a genuine problem: India’s ethanol production capacity has now overtaken what the E20 programme actually consumes, and the country is simultaneously exposed to LPG price shocks and import-dependent aviation fuel. Turning surplus ethanol into a solution for both looks, at first glance, like a tidy piece of policy design.

But “surplus” is a temporary condition. The moment ethanol becomes the default answer for cooking, aviation and dispensing infrastructure -on top of a blending mandate that is itself expected to climb toward E27 and E30 -the surplus disappears, and demand starts competing directly with the same feedstocks India already uses to grow food. This is the argument this article makes: India’s ethanol ambitions beyond petrol blending are only sustainable if they are built on second-generation (2G) ethanol from agricultural residue, not on more sugarcane, maize and rice.

From E20 Success to an Ethanol Economy

India’s EBP has scaled at a pace few biofuel programmes anywhere have matched. Ethanol production capacity has grown from roughly 420 crore litres in 2013-14 to close to 2,000 crore litres today, with industry estimates pointing to another 400 crore litres of capacity coming online by FY27. Petrol pumps selling ethanol-blended fuel have grown from under 30,000 a decade ago to more than 67,000 today.

The scale of that build-out is precisely why policymakers are now looking past petrol. Government data cited in recent briefings puts total ethanol production at around 20 billion litres a year. The E20 programme consumes roughly 11 billion litres, and the liquor, pharmaceutical and chemical industries take up another 3.5 billion litres. That leaves an estimated 6-7 billion litres of installed capacity without a committed offtake -the exact gap that cooking fuel, SAF and export policy are now being designed to fill.

The New Ethanol Frontier: Kitchens, Cockpits and Kiosks

Ethanol as a Cooking Fuel

The trigger for the cooking-fuel push was as much geopolitical as economic. Disruptions to LPG supply routes through the Strait of Hormuz earlier this year exposed how directly Indian kitchens are hostage to Gulf shipping lanes. Industry bodies -the Indian Sugar & Bio-Energy Manufacturers Association (ISMA), the Federation of Indian Petroleum Industry (FIPI) and the Grain Ethanol Manufacturers Association (GEMA) -seized the moment to lobby for ethanol cooktops, citing an International Institute for Sustainable Development estimate that ethanol and biogas together could save India close to $25 billion in LPG subsidies over time.

The Ministry of Petroleum and Natural Gas has asked state-run oil marketing companies to develop ethanol-compatible stoves with technology partners, and to explore dedicated ethanol dispensing kiosks so households can buy the fuel the way they buy LPG cylinders today. A parallel export track is also on the table, aimed at Nepal, Bangladesh and Indonesia -markets with blending targets but limited domestic ethanol production of their own.

Ethanol ATMs and Dispensing Infrastructure

Alongside cooking fuel, the government is examining automated ethanol dispensing points -informally called “ethanol ATMs” -at existing petrol pumps. The idea is to let consumers, from flex-fuel vehicle owners to small industrial users, draw ethanol directly rather than relying solely on blended petrol at the pump. It is a modest piece of infrastructure on paper, but it signals a shift in how ethanol is being positioned: not as an additive hidden inside petrol, but as a fuel in its own right.

Sustainable Aviation Fuel

The most consequential shift may be in aviation. On April 17, 2026, the Ministry amended the Aviation Turbine Fuel (Regulation of Marketing) Order to widen the legal definition of ATF beyond conventional hydrocarbons under IS 1571, to include blends with synthetic hydrocarbons under IS 17081. That single notification opened the door, for the first time, to ethanol-derived jet fuel in India.

The relevant pathway is Alcohol-to-Jet (AtJ), an ASTM-certified process (D7566) that converts ethanol into jet-range hydrocarbons through dehydration, oligomerisation and hydrogenation. India has set SAF blending targets of 1% by 2027, 2% by 2028 and 5% by 2030 for international flights under its CORSIA commitments, and NTPC Green Energy and GPS Renewables are already developing what is expected to be India’s first dedicated ethanol-to-jet plant, near Visakhapatnam.

The scale of the ambition is significant. Civil aviation officials have pointed to a global SAF requirement of roughly 183 million tonnes by 2040, and have argued that SAF adoption could cut India’s crude import bill by $5-7 billion a year while creating over a million green jobs and lifting farm incomes by 10-15%. Deloitte’s analysis for the sector puts India’s surplus agricultural residue at roughly 230 million tonnes, framing that residue -not sugarcane or grain -as the feedstock base the AtJ pathway should eventually run on.

Even the aviation ministry’s own framing is telling: 1G ethanol is described as a bridge to get AtJ plants running, while 2G ethanol from residue is described as the pathway the sector needs to mature into. India’s aviation planners have effectively already conceded the argument this article is making -for cooking fuel and blending too.

Where Will All This Ethanol Come From?

Add up cooking fuel, SAF, ethanol ATMs, flex-fuel vehicles, export commitments and a blending mandate that is itself expected to climb past E20, and one question becomes unavoidable: where is all this ethanol going to come from?

Today’s answer is almost entirely first-generation (1G) ethanol -made from sugarcane molasses and juice, maize, and increasingly, rice diverted from the Food Corporation of India’s buffer stocks. That answer worked when the only demand was a 20% blend in petrol. It becomes structurally harder to sustain the moment ethanol is also expected to heat food, fly aircraft, and stock dispensing kiosks across the country.

The 1G Ceiling: Food, Water and Land Already Under Strain

The pressure 1G ethanol places on India’s food and water systems is not hypothetical, it is already visible in policy decisions taken this year. In March 2026, the Centre cut the share of broken rice in Public Distribution System allocations from 25% to 10%, redirecting an estimated 90 lakh tonnes (9 million tonnes) of rice annually from PDS beneficiaries to ethanol distilleries, up from roughly 52 lakh tonnes the previous year. Defenders point to FCI’s bloated rice stocks, which run at nearly four times the mandated buffer norm. Critics, including the Comptroller and Auditor General, have argued that this surplus reflects procurement and logistics failures rather than genuine abundance, and that “broken” rice is nutritionally identical to whole rice, its reclassification as industrial feedstock is a policy choice, not a biological fact.

Water tells a similar story. NITI Aayog’s Composite Water Management Index has warned that groundwater in 21 major Indian cities, including Delhi, Bengaluru, Chennai and Hyderabad, is headed toward critical depletion by 2030, against a backdrop where agriculture already consumes close to 80% of the country’s freshwater. The water footprint of 1G ethanol feedstocks makes this worse, not better:

Feedstock	Generation	Water per litre of ethanol
Rice (paddy)	1G	~10,790 litres
Maize	1G	~4,670 litres
Sugarcane (molasses)	1G	~3,630 litres (NITI Aayog: ~2,860 L)
Rice straw / agri-residue	2G	Negligible -process water only

These figures -drawn from the Food Secretary’s own public statements and NITI Aayog’s 2021 ethanol roadmap -describe a fuel pathway whose real cost shows up at the borewell, not the petrol pump. Layering cooking-fuel demand, SAF offtake and export volumes onto a 1G-dependent supply chain does not just strain this system further; it multiplies the scale at which the strain occurs, because each new application adds its own claim on the same finite pool of sugarcane, maize and rice.

2G Ethanol: The Only Pathway That Scales Without the Trade-Off

Second-generation ethanol is produced from lignocellulosic biomass -the agricultural residue left over once the food crop has already been harvested. India’s single largest source is rice straw, of which the country generates an estimated 160-180 million tonnes a year, a large share of it currently burned in the fields of Punjab and Haryana every winter, driving one of the most visible air-quality crises in North India. Wheat straw, corn stover and sugarcane bagasse add further volume. Civil aviation officials have separately cited a national surplus agricultural residue base of 213-230 million tonnes -comfortably large enough to underwrite cooking fuel, SAF and blending demand simultaneously, without a single additional acre being diverted from food production.

The case for 2G ethanol rests on a simple structural difference from 1G:

No food-versus-fuel conflict: the grain is harvested and eaten; only the stalk, husk or straw -which was headed for a fire or a slow decomposition -goes to the distillery.

A far smaller water footprint: 2G ethanol needs only process water, a few litres per litre of output, because the crop was never grown for fuel in the first place.

Stubble-burning reduction: every tonne of residue converted to ethanol is a tonne that does not get set alight, with direct air-quality benefits across Punjab, Haryana and Delhi-NCR.

A genuine circular economy: modern 2G platforms can extract ethanol alongside co-products such as silica and gypsum from the same biomass stream, turning a single residue into multiple revenue lines.

Additional farmer income: residue that currently has negative value -farmers often pay to have it cleared -becomes a saleable input.

Deeper lifecycle emissions savings: the counterfactual for the feedstock is combustion or decay, both of which release carbon anyway, so diverting it to ethanol is close to a net climate gain rather than a trade-off.

Better long-term energy security: residue generation tracks the country’s food harvest, not sugar prices or grain export cycles, making 2G supply structurally more stable than 1G.

Put simply: every additional application the government is now exploring -cooking fuel, SAF, ethanol ATMs, exports -is a fresh reason to accelerate 2G capacity, not a reason to keep leaning on food crops. The aviation ministry’s own SAF roadmap already treats 1G ethanol as a stop-gap and residue-based AtJ as the intended end state. Cooking fuel and blending policy have yet to make the same admission explicitly, but the underlying feedstock arithmetic is identical.

Policy Has to Catch Up With Demand

India’s biofuel policy architecture was largely built around a single use case: petrol blending. Extending ethanol into cooking, aviation and dispensing infrastructure without a parallel feedstock strategy risks repeating the same food-and-water trade-offs at a larger scale. Three shifts look overdue:

1. Ring-fence new demand for 2G supply. As cooking fuel, SAF and ATM programmes are rolled out, incremental ethanol volumes for these uses should be sourced preferentially from 2G capacity, rather than simply drawn from the same distillery pool feeding E20.
2. Price 2G ethanol for its true value. 2G plants are more capital-intensive to build than 1G distilleries, but they carry none of the food or water externalities. Procurement pricing under schemes like the EBP should reflect that saved cost, not just capital cost per litre.
3. Accelerate execution under PM JI-VAN Yojana. BPCL’s commercial 2G plant at Bargarh, Odisha -commissioned in March 2026 and processing 100 KLPD from rice straw -shows the technology works at commercial scale. What is missing is execution speed: biomass aggregation logistics, faster land acquisition, and risk-sharing support for first-of-a-kind 2G plants competing for the same policy attention as cooking-fuel and SAF announcements.

Where Khaitan Bio Energy Fits In

The expansion of ethanol into cooking fuel, aviation and dispensing infrastructure only works if 2G capacity can be built fast enough to matter -and that has historically been the weak link in India’s biofuel ecosystem. It is the gap Khaitan Bio Energy’s technology platform is designed to close.

The company’s patented 2G ethanol technology, developed by Mr Rohit Khaitan and validated through a BIRAC-supported pilot under the “Cellulosic Ethanol Pilot Plant for Rice Straw Management” project, converts rice straw into ethanol through a commercially viable cellulose-to-sugars-to-ethanol pathway. Three features are directly relevant to the demand picture described in this article:

• TRL-8 certification: the technology is certified at Technology Readiness Level 8 by the Department of Biotechnology, Government of India -meaning it is validated for commercial deployment, not confined to a lab.
• Rice straw as feedstock: the platform is purpose-built around India’s largest and most problematic residue stream, the same rice straw currently burned across Punjab and Haryana.
• Integrated production of ethanol, silica and gypsum: full valorisation of the lignocellulosic biomass -not just the cellulose fraction -is what moves 2G unit economics from marginal to commercially competitive, and is central to the circular bioeconomy model that PM JI-VAN Yojana is designed to support.

As cooking fuel, SAF and dispensing infrastructure move from pilot to policy, platforms of this kind -proven, residue-based and already scaled to commercial readiness -are what determine whether that expansion is met sustainably or simply routed through more sugarcane and rice.

The Road Ahead

The debate India is having is no longer about whether ethanol has a role beyond the petrol tank. That question has effectively been settled: cooking fuel policy is due by September, SAF blending targets are already notified, and ethanol dispensing infrastructure is being piloted. The real question is whether India can produce enough ethanol sustainably to meet all of it at once.

If every new application -kitchens, cockpits, kiosks and export contracts -draws on the same sugarcane, maize and rice base that already feeds E20, India will be trading its oil-import dependence for a food and water dependence it is far less equipped to manage. If, instead, the country builds out 2G capacity at the pace its ethanol ambitions now demand, it can meet all of this new demand while cutting stubble burning, adding farmer income, lowering lifecycle emissions and building a genuinely circular bioeconomy.

The ethanol in the tank, the stove and the aircraft can come from the same place -the crop residue India already burns every winter -or it can come from the food chain. The technology to choose the first path already exists. What is left is the pace of deployment.

Frequently Asked Questions

Q1. What does “ethanol beyond petrol blending” actually mean?

It refers to India’s expansion of ethanol use into applications outside the Ethanol Blending Programme (EBP), which currently blends ethanol into petrol up to 20% (E20). Beyond blending, the government is developing a policy for ethanol as a household cooking fuel, alongside dedicated stoves and dispensing kiosks; it has amended aviation fuel rules to allow ethanol-derived Sustainable Aviation Fuel (SAF) through the Alcohol-to-Jet pathway; it is piloting automated ethanol dispensing points, informally called ethanol ATMs; and it is exploring ethanol exports to markets such as Nepal, Bangladesh and Indonesia. Together, these applications could consume several billion additional litres of ethanol a year on top of the roughly 11 billion litres already used for E20 blending, which is why the question of feedstock sustainability now matters far more than it did when blending was the only use case.

Q2. How would ethanol actually work as a cooking fuel in Indian homes?

The Ministry of Petroleum and Natural Gas is preparing a policy framework, expected by September 2026, under which state-run oil marketing companies would develop ethanol-compatible stoves in partnership with technology and research institutions, and set up dedicated ethanol kiosks or dispensing units where households could buy the fuel much as they buy LPG cylinders today. The push follows LPG supply disruptions linked to shipping-route tensions near the Strait of Hormuz, and industry estimates, cited by bodies such as ISMA, suggest ethanol and biogas together could save India close to $25 billion in LPG subsidies over time. The programme is still at the policy-design stage rather than nationwide rollout, and its scale will depend heavily on how much of the ethanol supply comes from 2G sources rather than food-grain distilleries.

Q3. What are “ethanol ATMs,” and are they different from petrol pumps?

Ethanol ATMs are automated dispensing units the government is examining for installation at existing fuel retail outlets, allowing consumers -including flex-fuel vehicle owners, small industrial users and eventually households -to purchase ethanol directly rather than only as a blend already mixed into petrol. They are distinct from the pumps that sell E20 petrol, because the ethanol dispensed is unblended and sold as a standalone fuel. The concept is still in the planning stage and is being developed alongside the broader push to expand ethanol demand beyond the EBP, as government data suggests India’s installed ethanol production capacity, at roughly 20 billion litres a year, now exceeds committed blending and industrial offtake by an estimated 6-7 billion litres.

Q4. How does ethanol fit into Sustainable Aviation Fuel (SAF), and is this really happening?

On April 17, 2026, India’s Ministry of Petroleum and Natural Gas amended the legal definition of Aviation Turbine Fuel to include blends with synthetic hydrocarbons under IS 17081, alongside the existing IS 1571 standard for conventional jet fuel. This formally opened the door to ethanol-derived SAF through the Alcohol-to-Jet (AtJ) pathway, an ASTM D7566-certified process that converts ethanol into jet-range hydrocarbons. India has set blending targets of 1% by 2027, 2% by 2028 and 5% by 2030 for international flights under its CORSIA commitments, and NTPC Green Energy and GPS Renewables are developing what is expected to be the country’s first dedicated ethanol-to-jet facility, near Visakhapatnam. It is an early-stage but concrete policy shift, not merely a proposal.

Q5. Why can’t India’s existing 1G ethanol supply meet this expanded demand?

First-generation (1G) ethanol is made from sugarcane, maize and rice -crops and grains that already compete with food supply and irrigation water. In March 2026, the government cut the share of broken rice in PDS allocations from 25% to 10%, redirecting roughly 90 lakh tonnes of rice a year to ethanol distilleries. Water footprints per litre of 1G ethanol range from about 3,630 litres for sugarcane to nearly 10,790 litres for rice, according to Food Secretary and NITI Aayog data, at a time when NITI Aayog itself has warned that 21 major Indian cities face critical groundwater depletion by 2030. Layering cooking fuel, SAF and export demand onto this same feedstock base would multiply these pressures rather than simply sustaining today’s E20 blending level.

Q6. What is 2G ethanol, and how is it different from 1G ethanol?

Second-generation (2G) ethanol is produced from lignocellulosic agricultural residue -rice straw, wheat straw, corn stover and sugarcane bagasse -left over after the food crop has already been harvested, rather than from the food-grade crop itself. India generates an estimated 160-180 million tonnes of rice straw a year, much of it currently burned in Punjab and Haryana, alongside a broader national surplus agricultural residue base estimated at 213-230 million tonnes. Because the residue is a byproduct rather than a purpose-grown crop, 2G ethanol requires only a few litres of process water per litre of output, compared with thousands of litres for 1G feedstocks, and it does not divert any grain away from food supply. This is why 2G is increasingly treated as the structural answer to expanding ethanol demand.

Q7. What benefits does 2G ethanol offer beyond solving the food-and-water problem?

Beyond removing the food-versus-fuel and water-footprint concerns tied to 1G ethanol, 2G production offers several additional benefits. It directly reduces stubble burning, since residue that would otherwise be set alight in the field is instead converted to fuel, with real air-quality gains across North India. Advanced 2G platforms can extract co-products such as silica and gypsum alongside ethanol from the same biomass stream, creating a genuine circular bioeconomy with multiple revenue lines from one residue source. It creates a new income stream for farmers, who currently often pay to clear residue rather than sell it. And because the feedstock’s alternative fate is combustion or decay -both of which release carbon regardless -diverting it to ethanol delivers deeper lifecycle emissions savings than 1G pathways can achieve.

Q8. How is Khaitan Bio Energy positioned for this next phase of India’s ethanol economy?

Khaitan Bio Energy holds a patented 2G ethanol technology, developed by Mr Rohit Khaitan and validated through a BIRAC-supported pilot under the “Cellulosic Ethanol Pilot Plant for Rice Straw Management” project. The technology is certified at Technology Readiness Level 8 (TRL-8) by the Department of Biotechnology, Government of India, meaning it is ready for commercial deployment rather than confined to lab-scale trials, and it is aligned with the PM JI-VAN Yojana framework supporting advanced biofuel biorefineries. The platform converts rice straw -India’s largest residue stream -into ethanol while also producing high-purity silica and gypsum as co-products, a full-biomass-valorisation approach that improves 2G project economics. As cooking fuel, SAF and dispensing infrastructure move from policy to rollout, this kind of proven, residue-based platform is central to meeting that demand sustainably.

Every few weeks since India completed its nationwide E20 rollout, the same headline resurfaces: a vehicle owner complaining about lower mileage, a viral post about a corroded fuel line, a political leader calling the ethanol blending programme an “experiment.” In July 2026 alone, the Petroleum Ministry issued a detailed public clarification, Union Minister Nitin Gadkari personally defended the policy in interviews and Parliament, and the government formally ruled out bringing back a parallel supply of E10 or pure petrol.

The debate keeps circling the same question: is E20 worth it?

But that is the wrong question. The honest question is not whether ethanol blending is worth it – the economics and the environmental case for it are largely settled. The real question is why India rolled out one national fuel standard overnight, for a vehicle fleet where crores of vehicles were never built to run on it.

E20 is not the problem. The absence of a managed transition for the vehicles that came before it, is.

Where India’s Ethanol Story Actually Stands

India’s ethanol blending programme did not appear overnight. It traces back to a pilot launched in 2001, formal blending targets notified in 2013, and a National Policy on Biofuels in 2018 that expanded feedstocks beyond sugarcane to maize and grain. From there, the pace accelerated sharply:

• ~1.5% blending in 2014 → 10% by 2022 → 20% blending achieved by mid-2025, nearly five years ahead of the original 2030 target.
• The Ethanol Blended Petrol (EBP) Programme has saved more than ₹1.97 lakh crore in foreign exchange and displaced close to 316 lakh tonnes of crude oil imports since the 2014-15 supply year, according to the Petroleum Ministry.
• Over ₹1.66 lakh crore has been transferred to farmers through ethanol procurement, turning sugarcane, maize and surplus grain into an additional income stream for the agricultural economy.
• The programme has helped avoid an estimated 952 lakh tonnes of carbon dioxide emissions.

Milestone	Ethanol Blending Level	Timeline
Pilot programme launched	Experimental	2001
E5 introduced in parts of the country	~5%	2006
Blending stagnates on limited feedstock	~1.5%	2014
National Policy on Biofuels expands feedstocks	Ramp-up begins	2018
E10 target reached, ahead of schedule	10%	2022
E20 achieved nationwide	20%	2025-26
BIS notifies E22-E30 specifications	Roadmap stage	2026

The pace of this ramp-up is itself part of the current friction. India compressed a blending journey that other ethanol economies, such as Brazil and the United States, spread across several decades into little more than a decade, which is precisely why the vehicle fleet has struggled to keep pace with the fuel standard.

The Benefits Are Real, and They Are Not Small

It is worth stating plainly what E20 delivers, because the mileage debate has crowded out the rest of the conversation.

On energy security. India imports roughly 85% of its crude oil requirement. Every percentage point of ethanol blended into petrol is a percentage point of fuel that does not need to be shipped in from a volatile global market. The Petroleum Ministry has repeatedly pointed to this as the central rationale for the programme – not a promise of cheaper fuel, but insulation against crude price shocks and supply disruptions.

On farmer income. Ethanol procurement has become a genuine second market for sugarcane, maize and surplus grain, supplementing the income sugar mills and grain-based distilleries earn from food markets. This is money that flows directly into rural India, independent of global sugar or grain prices.

On engine performance. Ethanol has a higher octane rating than pure petrol, which improves anti-knock characteristics, allows for more efficient combustion and can deliver smoother acceleration in engines designed for the blend. The Ministry has cited this repeatedly as a genuine technical upside, not just a talking point.

On emissions. Ethanol burns cleaner than pure petrol on a lifecycle basis, and the government’s own figures put the carbon savings from the programme at close to 952 lakh tonnes of CO₂ to date – a number that will only grow as blending levels rise further with E22, E25 and eventually E30.

None of this is contested by serious critics of the rollout. What is contested is the trade-off that comes with it, and who is being asked to absorb it.

Benefit	Reported Figure	Source
Foreign exchange saved	~₹1.97 lakh crore	Ministry of Petroleum and Natural Gas
Crude oil imports displaced	~316 lakh tonnes	Ministry of Petroleum and Natural Gas
Farmer income transferred	~₹1.66 lakh crore	Ministry of Petroleum and Natural Gas
CO₂ emissions avoided	~952 lakh tonnes	Ministry of Petroleum and Natural Gas
Reported mileage impact	3-5% reduction in some vehicles	Petroleum Ministry, acknowledged publicly

These are not projections or industry estimates – they are the government’s own reported figures. Even allowing for the fact that they come from an interested party, the order of magnitude is telling: lakhs of crores in savings and transfers, against a single-digit percentage dip in mileage for a subset of vehicles.

The Cost Side: A 3-5% Mileage Hit, Acknowledged

To its credit, the government has not tried to deny the trade-off. The Petroleum Ministry has openly acknowledged that E20 fuel can reduce mileage by 3-5% in some vehicles, because ethanol carries less energy per litre than pure petrol. Union Minister Hardeep Singh Puri has said the same in public briefings, framing it as a modest and anticipated cost of a fuel that is otherwise cleaner and higher-performing.

The Ministry has also defended vehicle safety, pointing to field data from Maruti Suzuki, which serviced 2.84 crore vehicles in FY2025-26 – including 1.5 crore older, non-E20-certified vehicles – without reporting E20-linked corrosion, abnormal wear or reduced component life. Hero MotoCorp has cited similar experience across its two-wheeler service network.

That data is reassuring at the scale of a fleet. It is less reassuring to an individual owner of a 2018 hatchback or a 2015 motorcycle, built for E10 or lower, whose fuel line, gasket or carburettor was never engineered with 20% ethanol in mind – even if large-scale service data suggests the risk is manageable rather than severe.

Why the Benefits Still Outweigh the Costs

Weighed against each other, the ledger is not close. A 3-5% mileage reduction is a real cost to individual drivers, felt every time they fill a tank. But it is bounded, quantifiable, and – critically – a declining cost as engine calibration and materials continue to improve. Set against that is a structural, compounding benefit: reduced exposure to crude price shocks that can move by double digits overnight, a growing rural income stream, and a measurable cut in transport-sector emissions.

This is the same argument the Petroleum Ministry has made consistently through 2026: mileage is one input into a much larger equation, not the whole equation. Judged purely on macroeconomic and environmental terms, the ethanol blending programme has been one of India’s more effective energy policies of the last decade, delivering results years ahead of schedule.

The mistake is treating the benefit-cost argument as the entire policy question. It settles whether India should blend ethanol into its fuel. It does not settle how that transition should be managed for tens of millions of vehicles that were sold before the rules changed.

The Real Problem: A Fleet Built for a Fuel That No Longer Exists

E20 material compliance became mandatory only from April 2023, as part of the Bharat Stage 6 Phase 2 emission norms. Vehicles sold before that date were designed, certified and warrantied for E10 or lower. Industry estimates suggest that only around a fifth of the petrol vehicles sold in India over the last 15 years were built to E20 specification.

That means a very large share of India’s on-road fleet – hatchbacks, sedans, scooters and motorcycles bought well into the early 2020s – is now running on a fuel blend it was never designed for, because pure petrol and E10 have effectively been withdrawn from the retail network.

This is precisely the scenario the industry itself flagged years in advance. A 2021 NITI Aayog report recorded the auto industry’s own recommendation that E10 should remain available pan-India as a “protection-grade” fuel for the existing vehicle pool, even as E20 was introduced for newer, compliant vehicles. The Society of Indian Automobile Manufacturers went further, warning that forcing older vehicles onto E20 would require redesigning fuel-system components across a wide range of vintage variants – work that was never completed for the vehicles already on the road.

That recommendation was not implemented. E20 became the single national blend, and its rollout was advanced from its originally planned 2030 date.

The Government’s Case Against a Dual-Fuel System – and Where It Falls Short

To be fair to the government, its reasoning for rejecting a parallel E10 supply is not baseless. The Ministry has argued that running pure petrol, E10 and E20 simultaneously across more than one lakh retail outlets, depots, terminals and pipelines would add real logistics costs and complexity. It has also pointed out that reverting to E10 as a standard blend could leave newly built ethanol production capacity underutilised, undermining the farmers, cooperatives and companies that have already invested in it.

Both points are legitimate operational constraints. But they describe a problem of scale, not a case against any transition support. India already manages multiple fuel grades – regular and premium petrol are sold side by side today without collapsing the distribution network. A targeted, time-bound E10 allocation for a shrinking pool of pre-2023 vehicles is a materially smaller logistics problem than a permanent three-grade national system, and it does not require reopening the debate on whether E20 should be the long-term standard.

What a Smoother Transition Could Look Like

None of this argues against E20, or against India’s move toward E22, E25 and eventually E30. It argues for treating the transition itself as a policy problem worth solving, rather than a side issue to be waved away. A few concrete steps could do that:

• A defined, sunset-dated E10 allocation for pre-2024 non-compliant vehicles. Rather than a permanent parallel grade, a capped volume of E10 – available through select outlets or by registration-linked entitlement – would protect the legacy fleet without recreating a full three-grade national network.
• Faster rollout of E20 upgrade kits. A few manufacturers have already developed retrofit kits for R&D purposes. Making these commercially available, at a subsidised cost for older vehicles, converts an open-ended risk into a one-time, bounded fix.
• Clear, vehicle-specific compatibility disclosure at the point of purchase and service, so owners of pre-2023 vehicles know precisely where they stand, rather than relying on fleet-level reassurances that may not reflect their specific model or usage pattern.
• A visible sunset clause. As the pre-2023 fleet is naturally retired over the next 7-10 years, the E10 allocation shrinks with it – giving oil marketing companies, farmers and distillers certainty that the transition support is temporary, not a rollback of the blending programme.

A transition plan along these lines does not slow down India’s ethanol trajectory. If anything, it removes the single biggest source of public resistance to a programme that, on the numbers, has delivered exactly what it promised.

India would not be inventing this model from scratch. The United States sells E10 as its standard petrol while offering E85 for flex-fuel vehicles at the same stations. Brazil, which pioneered ethanol blending decades ago, offers both a standard ethanol-petrol blend and near-pure petrol side by side. Both markets manage more fuel-grade complexity than a temporary, sunset-dated E10 allocation for India’s pre-2023 fleet would require.

The government’s own past behaviour supports this too: regular and premium petrol already coexist across the retail network without the logistics system collapsing. A capped, declining volume of E10, reserved for a fleet that is itself shrinking every year as older vehicles are scrapped, is a narrower version of a problem India already manages daily.

Where Khaitan Bio Energy Fits In

A managed transition to E20, and eventually to E22, E25 and E30, depends on one thing above all: a feedstock base that can expand without straining farm output, food prices or fuel pricing. This is where the shift toward second-generation (2G) ethanol becomes directly relevant to the mileage-versus-benefits debate.

2G ethanol, produced from agricultural residues such as rice straw rather than food-grade grain, adds ethanol supply without competing for the same sugarcane, maize and rice that anchor both India’s food system and its ethanol procurement pricing. A larger, more diversified feedstock base also reduces the pricing pressure that has kept E20 from becoming cheaper than conventional petrol – one of the most common public criticisms of the programme.

Khaitan Bio Energy’s patented 2G ethanol technology, certified at Technology Readiness Level 8 (TRL-8) by the Department of Biotechnology and selected for commercial development under the PM JI-VAN Yojana, is built Khaitan Bio Energy’s patented 2G ethanol technology, certified at Technology Readiness Level 8 (TRL-8) by the Department of Biotechnology and selected for commercial development under the PM JI-VAN Yojana, is built The Road Ahead

India’s ethanol blending programme has done what it set out to do: cut crude imports, support farm incomes, and reduce transport emissions, years ahead of schedule. On the numbers, the benefits comfortably outweigh a 3-5% mileage trade-off.

But policy success on aggregate terms does not erase the legitimate frustration of an individual owner whose 2019 car was never built for the fuel now sitting in every pump in the country. E20 is not the problem India needs to solve. The absence of a clear, time-bound bridge for the vehicles that predate it, is. Get that transition right, and the road to E25 and E30 gets a great deal smoother.

Frequently Asked Questions

Q1. Does E20 petrol actually reduce mileage?

Yes. The Petroleum Ministry has acknowledged that E20 fuel can reduce mileage by approximately 3-5% in some vehicles, because ethanol carries less energy per litre than pure petrol. The government maintains that this is offset by ethanol’s higher octane rating and the programme’s broader energy security and emissions benefits.

Q2. Is E20 petrol cheaper than regular petrol?

Not necessarily. The government has clarified that E20 is not automatically cheaper because ethanol procurement prices are fixed at remunerative levels to support farmers, and can exceed crude-linked petrol prices when global oil is relatively cheap. The programme’s goal is energy security and rural income, not a lower retail price.

Q3. Which vehicles are E20 compliant?

E20 material compliance became mandatory from April 2023 under Bharat Stage 6 Phase 2 norms. Vehicles sold before that date were generally designed and certified for E10 or lower, though manufacturers state that most E10-compliant vehicles can run on E20 without major issues based on field service data.

Q4. Why doesn’t the government offer E10 alongside E20 for older vehicles?

The government has cited the logistics and cost of maintaining multiple petrol grades across more than one lakh retail outlets as its main reason for ruling out a parallel E10 supply. It has also noted that reverting to E10 as a standard blend could leave ethanol production capacity underutilised.

Q5. What would a smoother E20 transition look like?

A time-bound, sunset-dated E10 allocation for pre-2024 non-compliant vehicles, wider availability of E20 upgrade kits, clearer vehicle-specific compatibility disclosure, and continued expansion of feedstock supply through 2G ethanol would all reduce the friction in the current transition without slowing India’s broader blending trajectory.

Q6. How does 2G ethanol support the E20-to-E30 transition?

Second-generation ethanol, made from agricultural residues like rice straw rather than food-grade grain, expands India’s ethanol supply without adding pressure on food crops or ethanol pricing. This kind of feedstock diversification, which platforms like Khaitan Bio Energy’s TRL-8 certified technology are built to deliver, is central to sustaining higher blending levels as India moves toward E22, E25 and E30.

Q7. Is E30 fuel already available in India?

Not yet for general retail. The Bureau of Indian Standards notified technical specifications for E22, E25, E27 and E30 blends (IS 19850:2026) in May 2026, and the government has exempted these blends from excise duty to encourage their rollout. ARAI is currently studying engine compatibility for higher blends, starting with E25, before any nationwide sale is mandated.

On July 3, 2026, the Ministry of Petroleum and Natural Gas did something it rarely does: it issued a point-by-point public rebuttal to a specific set of viral claims. Ten of them, to be exact – on water use, engine damage, insurance, insects, food security and more – all circulating widely about India’s Ethanol Blending Programme (EBP) in the weeks after the country crossed the E20 milestone nationwide.

The timing is not a coincidence. E20 fuel is now the default at the pump. Every vehicle owner in the country has an opinion about it, and social media has filled the gap between a genuinely complex energy transition and the limited public understanding of it. Some of what has circulated is exaggeration. Some of it is fabricated outright. And some of it – the calorific-value mileage question, in particular – is a real, measurable effect that has simply been inflated by a factor of ten.

This piece goes through the claims that have driven the loudest debate, sets each one against the testing data, government clarifications and independent expert commentary now on record, and separates what is demonstrably true from what is not.

Why This Debate Erupted Now

India’s ethanol blending journey has been underway since 2003, but it accelerated sharply in the last decade – from roughly 1.5% blending in 2013-14 to 20% blending achieved in December 2025, well ahead of the original 2030 target. Installed ethanol production capacity has grown in step, reaching close to 2,000 crore litres, with procurement for the current supply year projected above 1,200 crore litres.

That speed is precisely what has made the programme a target. A policy that quietly built up over two decades became, in the space of a few months, something every petrol-vehicle owner in the country was suddenly using every day. That combination – rapid rollout plus low public familiarity – is fertile ground for viral misinformation, and content that frames E20 as dangerous or fraudulent travels further online than content that explains distillation chemistry or ARAI test protocols.

Union Minister Nitin Gadkari has gone further, suggesting at industry forums that some of the more persistent myths are not organic at all, but originate from interests threatened by India’s reduced dependence on imported crude. Whatever the source, the claims now have enough reach that the Ministry, oil marketing companies, insurers and vehicle manufacturers have all felt compelled to go on record. Here is what they said, myth by myth.

Myth 1: “Producing one litre of ethanol takes 10,000 litres of water”

The claim

A widely shared statistic holds that manufacturing a single litre of fuel ethanol consumes roughly 10,000 litres of water – a number meant to suggest the EBP is quietly draining India’s already stressed groundwater.

The fact

The 10,000-litre figure conflates the water embedded in growing an entire feedstock crop over its lifecycle with the water actually used in the ethanol distillation process itself. The two are not the same thing. The Ministry has clarified that distilleries typically consume about 3-5 litres of processed water per litre of ethanol produced, and an increasing share of plants now operate Zero Liquid Discharge (ZLD) systems that recycle process water rather than releasing it.

On feedstock, the government’s position is that only surplus rice – grain cleared after national food security requirements are met – is diverted to ethanol, and that maize, which now supplies more than 40% of ethanol under the programme, requires substantially less irrigation than paddy and is being pushed further through higher minimum support prices. Ethanol plants are also required to hold statutory environmental clearances and comply with groundwater extraction norms, which is precisely the regulatory layer the viral claim ignores.

Myth 2: “E20 cuts mileage by 20-30% and wrecks your engine”

The claim

This is the most persistent and, in fairness, the most scientifically grounded of the viral claims – because there is a real effect being exaggerated. Posts claiming a 20-30%, sometimes 30-35%, mileage collapse have circulated widely, alongside claims that ethanol corrodes engines outright.

The fact

Ethanol does carry a lower calorific value than petrol because it contains more oxygen, and that does translate into a measurable mileage effect. But at the E20 blend level, ethanol experts including Abinash Verma – former Director General of the Indian Sugar and Bio-energy Manufacturers Association – put the real-world reduction at approximately 2-3%, not 30%. Government-backed trials by the Automotive Research Association of India (ARAI), covering roughly 40,000 km of testing on passenger vehicles, found no evidence supporting claims of major mileage loss or widespread engine failure.

On the corrosion question, the picture is similarly overstated: ethanol does not corrode engine internals. Some rubber and plastic components in older, non-tuned vehicles may see a modestly shorter service life – roughly 8-10 years instead of 10-12 – with replacement costs in the range of ₹20,000-30,000 spread across a decade of ownership. All vehicles manufactured from 2023 onward are built to run on E20 natively. Meanwhile, ethanol’s high octane rating of 107 works in the other direction: blending it into petrol raises the fuel’s overall octane number, which reduces engine knocking and can extend engine life rather than shorten it – a point vehicle owners chasing “premium” high-octane fuel already pay extra for.

Myth 3: “Ethanol contains sugar, so E20 attracts ants and bees”

The claim

Viral videos of ant colonies clustering near fuel caps and filler necks have been used to argue that E20, being derived from molasses or grain, retains sugar that attracts insects.

The fact

Fuel-grade ethanol is not sugar. The fermentation and distillation process used to produce it removes residual sucrose and glucose entirely, leaving a highly purified industrial alcohol with no sugar content for insects to detect. Bharat Petroleum Corporation Limited has confirmed that fuel ethanol additionally contains denaturants that actively repel insects, and that petrol’s dominant hydrocarbon odour persists after blending – in an E20 mix, petrol still makes up 80% of the fuel by volume. Ethanol-blended fuels have also been used at far higher concentrations for decades in Brazil (up to E100) and the United States (E85) without this becoming a documented engineering problem; if sugar-driven insect attraction were real, it would show up at scale in those markets first.

Myth 4: “Using E20 voids your insurance and warranty”

The claim

Social media posts have alleged that insurers are rejecting claims, and manufacturers voiding warranties, specifically because a vehicle was run on E20 fuel.

The fact

Both claims have been directly and specifically denied by the parties who would actually make that decision. ICICI Lombard General Insurance has stated on record that its motor policies remain fully valid for E20 use and that the fuel is not treated as a form of owner negligence. The Society of Indian Automobile Manufacturers (SIAM) has confirmed that warranty obligations continue to apply for vehicles running on E20. Petroleum Minister Hardeep Singh Puri has stated plainly that E20 use has no bearing on insurance validity, and the Press Information Bureau’s Fact Check unit has separately flagged the invalidation claims as incorrect.

Myth 5: “E20 lets water leak into your fuel tank” and “Sugarcane juice is mixed straight into petrol”

The claim

Two related videos have circulated: one purporting to show water contaminating E20-filled tanks, another showing sugarcane juice separating into layers when mixed with petrol, implying that is literally how the fuel is made.

The fact

On water ingress, the Ministry’s position is that contamination risk exists independent of fuel type, and that modern vehicles and retail fuel infrastructure carry standard safeguards designed to prevent it regardless of blend. On the sugarcane-juice videos, the government has called them fabricated: fuel-grade ethanol is never produced by pouring raw juice into a petrol tank. It goes through an industrial fermentation-distillation chain and is blended into petrol only after meeting prescribed fuel-quality specifications, at licensed depots, not at the point of retail.

Myth 6: “The government itself called E20 an experiment in the Supreme Court”

The claim

Media reports suggested the Centre had described the EBP as an untested “experiment” in Supreme Court filings – implying an admission that the programme’s safety was unproven.

The fact

The government has denied this characterisation and clarified that the relevant court proceedings concerned contractual terms governing ethanol procurement between oil marketing companies and suppliers – a commercial and procedural matter – and had nothing to do with the scientific validity or safety of ethanol blending itself. The Office of the Attorney General has issued its own clarification stating that the reports implying otherwise were inaccurate.

Myth 7: “E20 is an untested fuel being forced on Indian consumers”

The claim

A recurring framing describes ethanol blending as a novel, unproven experiment being run on Indian vehicle owners without adequate global precedent.

The fact

Ethanol as a transport fuel predates the modern automobile industry itself – Henry Ford’s 1908 Model T was designed to run on ethanol, petrol, kerosene, or blends of the three. In the present day, the United States runs E10 as its standard petrol grade nationwide, with E15 expanding and millions of flex-fuel vehicles already capable of running up to E85. Brazil mandates E27 today and has approved a move toward roughly 35% blending, with more than 80% of new passenger vehicles sold there built as flex-fuel models. Canada, Thailand, Japan and several European countries all run ethanol-blended fuels as standard. India’s E20 rollout sits inside this established global pattern rather than outside it.

Myth 8: “Ethanol production is quietly damaging the environment and depleting groundwater”

The claim

A broader environmental critique argues that ethanol distilleries pollute waterways, deplete aquifers and operate with minimal oversight.

The fact

Ethanol plants in India require statutory environmental clearances before construction, are bound by groundwater extraction regulations, and are increasingly mandated to run Zero Liquid Discharge systems that recycle rather than discharge process water. On the output side, the government credits the EBP with cutting transport-linked carbon dioxide emissions by roughly 930 lakh metric tonnes since the programme’s early years, alongside displacing more than 310 lakh metric tonnes of crude oil imports – outcomes that run in the opposite direction of the “quietly damaging the environment” framing.

The Numbers Behind the Rebuttal

Strip away the myths, and the government’s own data on the EBP’s cumulative impact since 2014-15 is what the debate should really be anchored to:

• Foreign exchange savings of more than ₹1.9 lakh crore from reduced crude oil imports
• Farmer payments exceeding ₹1.6 lakh crore, paid out faster than under pre-EBP arrangements
• Approximately 930 lakh metric tonnes of CO₂ emissions avoided
• More than 310 lakh metric tonnes of crude oil imports displaced
• Ethanol blending levels up from roughly 1.5% in 2013-14 to 20% by December 2025 – ahead of the original target date
• Installed production capacity of nearly 2,000 crore litres, with 2025-26 procurement projected above 1,200 crore litres

None of these figures require taking the Ministry’s word on faith – they are the kind of numbers that show up independently in trade data, fuel-import statistics and farmer payment records, which is a large part of why the mileage and water claims have been so much easier to debunk than to originate.

Why the Misinformation Keeps Spreading Anyway

If the underlying data is this well documented, why does the debate keep resurfacing? Three dynamics are doing most of the work. First, sensational claims travel further than technical clarifications – a video of a mileage gauge dropping gets more attention than a paragraph about oxygen content and calorific value. Second, a genuine kernel of truth (the real 2–3% mileage effect) gives exaggerated claims a foothold of plausibility that pure fabrications don’t have. Third, industry commentators have pointed to the possibility of organised campaigns from parties with a commercial stake in slowing India’s shift away from imported crude, though the origin of any individual post is rarely traceable with certainty.

What is traceable is the response: a coordinated “Facts vs Misinformation” clarification from the Ministry, on-record statements from SIAM, BPCL and major insurers, and independent commentary from former public-sector energy executives and ethanol-industry experts, all converging on the same set of conclusions.

The Road Ahead

India’s ethanol blending programme is entering a phase where public trust matters as much as production capacity. E20 is now the default fuel at the pump, E85 has begun its own retail rollout, and the country’s ethanol demand curve is set to roughly double by 2040 as flex-fuel vehicles scale. A programme moving at that pace needs an informed public at least as much as it needs feedstock and infrastructure – because misinformation that goes unanswered doesn’t just confuse consumers, it slows political and commercial confidence in a transition that is otherwise backed by two decades of testing and global precedent.

The science on E20 is not ambiguous. The mileage effect is real but small. The engine-damage claims don’t hold up. The water-use figure conflates two different things. The insurance and warranty concerns have been addressed directly by the companies that would actually enforce them. What remains is the harder work of making sure that evidence travels as fast online as the myths it is meant to correct.

Where the Deeper Science Case Gets Even Stronger

Much of the fact-vs-fiction debate around E20 centres on first-generation (1G) ethanol made from sugarcane, maize and surplus rice – and even there, the water and food-security concerns turn out to be smaller than claimed once actual distillery consumption and surplus-only sourcing are accounted for. Second-generation (2G) ethanol, made from agricultural residues like rice straw, wheat straw and bagasse, addresses the same criticisms from a different angle entirely: it draws on feedstock that has already been harvested for food, requires no incremental water, land or fertiliser, and converts material that is otherwise burned or left to decay into transport fuel.

This is the segment of India’s biofuel ecosystem that Khaitan Bio Energy is built around. Its patented 2G ethanol technology – certified at Technology Readiness Level 8 (TRL-8) by the Department of Biotechnology and evaluated by the Centre for High Technology, Ministry of Petroleum and Natural Gas – converts rice straw into fuel-grade ethanol while also recovering high-purity precipitated silica and gypsum as co-products, addressing the unit-economics gap that has historically slowed 2G scale-up. As India’s blending programme moves past E20 toward E85 and a larger, more scrutinised ethanol supply chain, feedstock pathways that pre-empt the water and food-security questions altogether are the ones best placed to keep the science on the programme’s side.

Frequently Asked Questions

Q1. Does E20 fuel really reduce vehicle mileage?

Yes, but only modestly. Ethanol has a lower calorific value than petrol because it carries more oxygen, and at the E20 blend level this results in an approximate 2-3% mileage reduction – not the 20-35% figures that have circulated on social media. Government-backed ARAI trials covering roughly 40,000 km found no evidence of major mileage loss or vehicle breakdowns linked to E20.

Q2. Does producing ethanol really use 10,000 litres of water per litre?

No. That figure blends together the water used to grow an entire feedstock crop with the water used in the distillation process itself. The Ministry of Petroleum and Natural Gas states that distilleries use about 3-5 litres of processed water per litre of ethanol, and an increasing number of plants operate Zero Liquid Discharge systems that recycle this water rather than releasing it.

Q3. Can E20 fuel void my vehicle’s insurance or warranty?

No. Insurers including ICICI Lombard and industry body SIAM have confirmed on record that using E20 fuel does not affect motor insurance validity or manufacturer warranty coverage. The Petroleum Minister and the PIB Fact Check unit have separately confirmed there is no such provision.

Q4. Does ethanol-blended petrol attract ants and insects?

No. Fuel-grade ethanol undergoes distillation that removes residual sugars, and the fuel contains denaturants that repel insects rather than attract them. Petrol’s hydrocarbon odour also remains dominant in an E20 blend, where petrol still makes up 80% of the fuel.

Q5. Does ethanol blending damage food security by diverting grain?

The government’s position is that only surplus rice, cleared after national food security requirements are met, is diverted for ethanol production, and that maize – now supplying over 40% of the programme’s ethanol – needs significantly less irrigation than paddy and is being promoted through higher support prices rather than displacing food-grade supply.

Q6. Is India’s E20 rollout scientifically untested compared to other countries?

No. Ethanol-blended fuel dates back to Henry Ford’s 1908 Model T, and countries including the United States (E10/E15/E85), Brazil (E27, moving toward ~35%), Canada, Thailand, Japan and several European nations already run ethanol blends as standard fuel. India’s E20 programme follows an established global pattern rather than an unprecedented one.

Q7. Why does misinformation about E20 keep resurfacing despite official clarifications?

Sensational claims about mileage loss or engine damage spread faster online than technical explanations of calorific value or distillation chemistry, and the small, real mileage effect at E20 gives exaggerated claims a foothold of plausibility. Industry voices, including Union Minister Nitin Gadkari, have also pointed to the possibility of organised campaigns from parties with a commercial interest in slowing India’s move away from imported crude.

India isn’t going to be selling much sugar to the world for a while. Reuters reported in late June 2026 that trade and industry executives now expect the country’s exportable surplus to stay thin for at least three more seasons. Two things are colliding to cause that: a weak, El Niño-tinged monsoon, and a sugarcane crop that’s increasingly getting pulled toward ethanol distilleries instead of sugar mills.

That single data point sits at the centre of a much bigger story. India’s ethanol blending programme has come a long way since it started as a modest 5 percent mandate back in 2003 – it crossed the E20 target in 2026, and E85 and E100 flex-fuel rollouts are now underway. Ethanol procurement by oil marketing companies has climbed from just 38 crore litres in 2013-14 to 904 crore litres in 2024-25, according to ThePrint’s reporting on All-India Distillers Association (AIDA) data.

Here’s the catch, though. The crops doing the heavy lifting for that growth – sugarcane, rice, and increasingly maize – are the same crops that feed India and draw water from some of the country’s most stressed aquifers. The Central Ground Water Board’s 2025 assessment had already classified several Indian regions as over-exploited, critical, or semi-critical for groundwater.

This isn’t a simple story of a reckless biofuel programme versus an innocent food economy – it’s more complicated than that. Ethanol blending has cut crude oil imports, raised farmer incomes, and genuinely helps cut emissions from road transport. But the feedstock choices behind it – cane, rice, and increasingly grain – carry real, measurable costs in export markets, food-subsidy budgets, and groundwater tables. Understanding both sides is really the only way to see why second-generation (2G) ethanol, made from agricultural residues rather than food crops, isn’t just a talking point anymore. It’s becoming a structural necessity.

This piece walks through the sugar squeeze, the rice and grain diversion debate, the hidden water arithmetic behind every litre of ethanol, and where residue-based 2G technology – including the pathway Khaitan Bio Energy is building – fits into the answer.

The Sugar Squeeze

Until recently, India was the world’s second-largest sugar exporter, shipping an average of 6.8 million metric tonnes a year over the five seasons through 2022-23 – close to 10 percent of global trade, according to Reuters. This season, exports totalled only around 800,000 tonnes before the Government of India suspended shipments until September 30, 2026.

Two forces are squeezing the surplus at the same time. The first is weather: this year’s monsoon is forecast to be the weakest in over a decade under El Niño conditions, with June rainfall running more than 40 percent below normal in several regions, according to Reuters. In Maharashtra’s Sangli district, cane farmer Sambhaji Patil told Reuters he’d shelved his plans to plant long-duration cane varieties and switched to soybeans instead – and he isn’t alone; nursery operators are reporting weaker demand for cane seedlings across the board. A separate analysis found rainfall in Maharashtra running at roughly half of normal levels two weeks into the monsoon, even as neighbouring northern Karnataka and parts of Uttar Pradesh saw better conditions.

The second force is ethanol demand itself. An analysis noted that sugarcane-based ethanol output has been stuck at 3-4 billion litres a year for five years now, well below the 9 billion litres of installed capacity. Why? Because government-set ethanol prices for cane juice and B-heavy molasses haven’t moved in nearly four years, even as sugar prices climbed – which leaves mills with little financial incentive to divert more cane to fuel. If that price gap closes, analysts expect a bigger share of cane to flow toward distilleries instead of sugar pans, squeezing sugar supply even further.

You can see the combined effect in the numbers. Industry estimates now put this season’s sugar production at 27.9 million tonnes – below annual domestic consumption of about 28.5 million tonnes, and well under earlier expectations of 30.95 million tonnes, per Reuters. Carry-in stocks for the next season, starting October 1, could fall to roughly 3.5 million tonnes – which traders describe as the lowest level in more than three decades.

Worst-case outlook, with appropriate caution: Some trade sources interviewed by Reuters suggested a severe El Niño combined with rising ethanol demand could push India toward sugar imports – something it last did in 2016-17 and 2017-18 after a similar drought, and at a scale (2009-10) that previously helped triple global sugar prices. Worth stressing: this is a tail scenario flagged by some traders, not a consensus forecast, and the government has so far chosen to review export approvals season by season rather than impose a formal multi-year ban.

Meanwhile, demand on the structural side isn’t slowing down. Industry estimates cited by both Reuters and ChiniMandi suggest India’s ethanol demand could more than double from today’s 12-13 billion litres to around 30 billion litres by 2039-40 as blending levels rise and flex-fuel vehicle adoption picks up – a trajectory that will keep pulling on cane supply no matter how the next few monsoons play out.

The Rice Diversion Problem

Sugarcane isn’t the only feedstock under pressure to pull double duty. ThePrint’s reporting on India’s evolving ethanol feedstock mix shows that grain-based ethanol – maize and rice combined – now accounts for roughly 65 percent of national ethanol production, with sugarcane supplying the rest. Of the 1,059 crore litres of ethanol contracted for supply in Ethanol Supply Year 2025-26, about 515 crore litres had already been delivered in the first six months, with maize alone contributing 182 crore litres.

Maize’s role has expanded dramatically – from just 6.2 percent of ethanol production in ESY 2022-23 to nearly half of production by ESY 2024-25, per AIDA data reported by ThePrint. Rice, though, remains a significant and contested part of the basket. India is currently sitting on Food Corporation of India (FCI) rice stocks estimated at around three times the prescribed buffer norm, and AIDA argues that diverting a portion of that surplus – including broken and damaged grain – to ethanol is a productive use of stock that would otherwise go to waste.

Not everyone buys that logic. ICRIER agricultural economist Ashok Gulati told ThePrint that FCI procures and stores rice at a cost of roughly Rs 42 per kilogram – a cost built on subsidised power and fertiliser – and then turns around and sells that same rice to ethanol distilleries at Rs 22-23 per kilogram. He called it “the most irrational policy that the government has,” arguing that hidden electricity and fertiliser subsidies mask ethanol’s true production cost, and that rice shouldn’t be anchoring a national fuel programme in the first place.

As ethanol feedstock crops earn better guaranteed returns, farmers may increasingly favour maize, rice, and sugarcane over pulses and oilseeds – reshaping cropping patterns in ways that could deepen India’s existing protein and edible-oil import dependence.

At its core, the debate over which crop should anchor India’s ethanol programme is as much about subsidy logic and water economics as it is about fuel policy. AIDA’s pricing data, via ThePrint, shows maize-based ethanol currently fetching Rs 71.86 per litre from oil marketing companies, against Rs 65.61 for sugarcane-based ethanol and Rs 60.32 for rice-based ethanol – a pricing structure that itself signals where policy is trying to steer the industry, even as rice diversion continues on the ground.

The Hidden Water Cost

Strip away the trade and subsidy debate, and a more basic constraint remains: water. ChiniMandi’s reporting on India’s ethanol-water nexus cites the NITI Aayog and Ministry of Petroleum and Natural Gas’s Roadmap for Ethanol Blending in India, which estimates that producing one kilogram of sugar from sugarcane requires between 1,600 and 2,100 litres of water – working out to roughly 3,000 litres of water for every litre of sugarcane-based ethanol.

Rice is worse. Producing one kilogram of rice typically consumes around 4,000 litres of water, and with roughly 2.5 to 3 kilograms of rice needed per litre of ethanol, the total water footprint can exceed 10,000 litres per litre of fuel, per the same NITI Aayog-cited estimates reported by ChiniMandi.

Figures vary by methodology: ICAR’s Indian Institute of Sugarcane Research (IISR), cited separately by ThePrint, arrives at a different ranking using monthly water use per hectare – estimating sugarcane at 1,313 cubic metres per hectare per month versus 1,691 for maize and 2,548 for rice, which would actually make sugarcane the most water-efficient of the three on a per-hectare basis. Rice in Punjab can need up to 22 irrigations per crop cycle and sugarcane in Maharashtra as many as 25 to 30, against just three to four for maize – placing rice and sugarcane together as the heaviest water users. The two data sets are measuring different things (water per kilogram of output versus water per hectare of land), which is part of why the debate over the “right” ethanol feedstock doesn’t have one settled answer.

What isn’t in dispute is where this water is coming from. ChiniMandi’s reporting flags that much of India’s first-generation ethanol growth has happened in states already under groundwater pressure, with Maharashtra singled out specifically. The Central Ground Water Board’s 2025 assessment, cited in the same report, put India’s annual groundwater recharge at 448.52 billion cubic metres against extractable resources of 407.75 billion cubic metres – a narrow margin, with several regions already categorised as over-exploited, critical, or semi-critical.

The states most exposed sit right at the intersection of heavy ethanol feedstock cultivation and water stress: Maharashtra and Karnataka for sugarcane, Punjab and Haryana for paddy rice, and Uttar Pradesh as both a major cane state and a region with its own groundwater concerns. ChiniMandi’s reporting notes that subsidised electricity and assured procurement systems can reinforce farmers’ incentives to keep growing water-intensive crops in exactly the places where water is most constrained – a feedback loop that growing ethanol demand risks making it worse rather than better.

Headwinds – Honestly Assessed

None of this is an argument for abandoning ethanol blending, and it would be misleading to frame it that way. The programme has delivered real, measurable benefits. ThePrint reports that it has generated more than Rs 1.29 lakh crore in revenue for sugar mills and attracted over Rs 42,000 crore in investment, while blending levels rose from 1.14 percent in 2014-15 to 20 percent in the current Ethanol Supply Year. Every percentage point of blending is a percentage point of crude oil India doesn’t have to import – and that matters a lot for a country that imports the large majority of its crude.

Maize-based ethanol in particular has given farmers in non-cane, non-paddy regions a guaranteed buyer where none existed before. Maize growers previously had “no other market,” and that ethanol demand has created real income for them. Flex-fuel vehicles, the E85 launch, and the elimination of production tax on higher ethanol blends all point to a programme that’s scaling deliberately, not by accident.

So the honest problem isn’t that the ethanol programme exists – it’s the current feedstock mix. Building a fuel strategy substantially on irrigated food crops, in a country where several major producing states are already groundwater-stressed and where sugar and rice carry real food-security weight, has a structural ceiling. Maize helps because it’s comparatively less thirsty, but India’s maize yields, at roughly 3.5 tonnes per hectare against the US’s 11 tonnes, mean more land and more water are needed per litre of ethanol than the headline crop-water numbers might suggest. The programme can keep growing on first-generation feedstocks for a while longer. What it can’t do is keep growing on them indefinitely without repeatedly running into the same sugar-export, food-subsidy, and groundwater constraints that are already playing out in real time.

Why 2G Ethanol Is the Structural Answer

Second-generation (2G) ethanol breaks the link between fuel output and food, land, or irrigated water demand by using agricultural residues – rice straw, wheat straw, bagasse, corn cobs – as feedstock instead of grain or cane juice. These residues are already a by-product of food production, so converting them to ethanol doesn’t require an extra hectare of irrigated land, an extra kilogram of rice, or an extra cubic metre of groundwater drawn specifically for fuel.

The residue pathway also carries a second, immediate benefit that none of the sugar or rice debates capture: stubble management. Rice straw burning across north Indian states is a recurring contributor to seasonal air pollution, and routing that straw into a 2G distillery instead of a field fire turns a waste-disposal problem into a feedstock supply chain. Bagasse – already a byproduct at every sugar mill – offers a parallel residue stream without competing with cane juice earmarked for sugar or 1G ethanol.

Because 2G ethanol draws on residues that are already being generated, it doesn’t introduce the same year-to-year supply volatility that a monsoon-dependent crop like sugarcane or paddy does. In other words, it’s a way to keep growing ethanol output toward E20, E85, and eventual E100 targets without repeating the same food-versus-fuel, water-versus-food trade-offs documented above for every additional billion litres of capacity.

Where Khaitan Bio Energy Fits In

Khaitan Bio Energy is building toward exactly this residue-based pathway. Our technology platform for converting agricultural residues – including rice straw and bagasse – into second-generation ethanol has achieved Technology Readiness Level 8 (TRL-8).

The pilot work behind this technology has been supported by BIRAC (Biotechnology Industry Research Assistance Council), which reflects its alignment with national priorities around biomass-to-biofuel conversion. It also sits squarely within the policy logic of the PM JI-VAN Yojana – the central government scheme designed to incentivise commercial 2G ethanol production from non-food biomass and residues, specifically to reduce dependence on food-crop feedstocks.

A distinguishing feature of Khaitan Bio Energy’s approach is lignin valorisation – converting the lignin-rich residue left over after fermentable sugars are extracted from straw or bagasse into usable co-products, including silica and gypsum. That turns what would otherwise be processed waste into an additional revenue stream, improving the overall economics of residue-based ethanol relative to food-crop pathways that carry no equivalent co-product credit. You can find more detail on the technology and pilot programme at khaitanbioenergy.com.

The Road Ahead

Pulling the threads above together, here’s where India’s ethanol story looks set to go from here: