Sugar out, grain in: Policy shift in India's ethanol economy

India's ethanol story has taken an unexpected turn. Within the span of less than two weeks, the government unveiled two seemingly contradictory policy signals. On October 16, oil marketing companies issued the procurement tender for the 2026-27 Ethanol Blending Programme (EBP), under which the Government of India effectively barred the procurement of ethanol produced from sugarcane juice, sugar syrup and B-heavy molasses, directing that sugar diversion for ethanol be reduced to zero for the upcoming supply year.

Yet on October 26, the government amended the Central Motor Vehicles Rules, 1989, to permit the use of fuels containing up to 100 per cent ethanol (E100), clearing the way for flex-fuel vehicles that can run on petrol, ethanol blends of varying proportions, or pure ethanol. So just as the government was expanding the regulatory framework for an ethanol-powered future, it was simultaneously restricting access to one of its most important sources of ethanol feedstock.

Until now, New Delhi had been steadily expanding ethanol blending as a cornerstone of its energy-security strategy, seeking to reduce dependence on imported crude oil, lower the economy's exposure to volatile global energy markets and create an additional revenue stream for farmers and sugar mills. For the November 2026-October 2027 ethanol supply year, OMCs will not procure ethanol produced from sugarcane juice, sugar syrup and B-heavy molasses, but will procure ethanol derived from maize, damaged food grains, surplus Food Corporation of India (FCI) rice and C-heavy molasses. In doing so, the government has effectively prioritised sugar availability over sugar-based fuel production.

The government's objective is to prevent further pressure on domestic sugar availability, but the decision raises a series of larger questions. Can India continue pursuing its ethanol ambitions while restricting sugar-based feedstocks? Will higher dependence on grain-based ethanol increase procurement costs for oil marketing companies? And what does this shift mean for the future of the sugar industry, the grain-based ethanol ecosystem and the economics of E20 petrol itself?

The timing of the decision comes against the backdrop of persistent concerns over domestic sugar availability and elevated retail sugar prices. Sugar prices have remained in the range of ₹70-80 per kilogram across many retail markets, fuelling concerns about food inflation at a time when household budgets are already strained by broader commodity-price pressures. More importantly, the outlook for sugar production has weakened considerably. Estimates suggest output may decline from around 31 million tonnes last year to roughly 27-29 million tonnes this season, bringing production dangerously close to annual domestic consumption of approximately 28.5 million tonnes.

Adverse weather conditions in Maharashtra and Karnataka, India's two largest sugar-producing states, have amplified concerns about supply shortages. Deficient rainfall and crop stress have raised the prospect of lower yields, making policymakers increasingly reluctant to allow large quantities of sugarcane-derived feedstock to be diverted towards ethanol production.

For sugar mills, ethanol offered a valuable revenue buffer against the cyclical volatility of sugar prices and inventories. The ability to divert cane juice and B-heavy molasses into ethanol often provided stronger returns than producing sugar alone. At the same time, the policy shift has accelerated a transition that was already underway within India's ethanol ecosystem. While sugarcane is often associated with public discourse around ethanol, maize, surplus rice and damaged food grains have also contributed to ethanol blended into petrol. Grain-based distillers have expanded capacity aggressively over the past several years and increasingly account for the bulk of incremental ethanol supply. The latest procurement framework merely formalises this evolution.

The growing reliance on maize is especially noteworthy because unlike sugarcane, maize requires significantly less water and can be cultivated across a wider geographical area. Rising demand from distillers has improved price realisation for farmers and encouraged increased cultivation. From a policy perspective, rather than depending disproportionately on a water-intensive crop concentrated in a handful of states, this creates a more diversified and potentially resilient ethanol supply chain.

Yet the transition also introduces new economic questions. Historically, ethanol derived from B-heavy molasses was among the most cost-effective options available to oil marketing companies. Replacing a larger share of sugar-based ethanol with grain-derived alternatives changes the economics of procurement with concerns that blending costs could rise.

These concerns assume greater significance at a time when global energy markets remain volatile and India continues to import the vast majority of its crude oil requirements. Any sustained increase in ethanol procurement costs inevitably raises questions about whether oil marketing companies can absorb the additional burden or whether what portion may eventually find its way into fuel pricing.

This emerging tension has already begun to surface in the broader policy debate. The Supreme Court's query on October 29 regarding the supply architecture for 100 per cent ethanol-powered vehicles reflects growing scrutiny of India's long-term ethanol strategy. The question is particularly pertinent because it came only days after the government had created a regulatory pathway for E100-compatible vehicles. At the same time, Petroleum and Natural Gas Minister Hardeep Singh Puri sought to temper expectations of a rapid escalation in blending targets, stating that the government has no immediate plans to increase ethanol blending beyond the current 20 per cent level.

So although policymakers insist on ethanol as a strategic fuel, the supply-side constraints and economic trade-offs associated with expanding its use underscores a new reality - energy security, food security, agricultural sustainability and inflation management can no longer be treated as separate policy domains.