Cheaper crude, dearer ethanol: India’s maize bind

India's ethanol blending journey represents one of the most significant energy transitions in recent years, fundamentally reshaping the relationship between agriculture and energy security. The dramatic shift from sugar-based to maize-based ethanol — now accounting for nearly 50% of blending feedstock compared to negligible levels just three years ago — reveals the complex interplay between global commodity markets, domestic agricultural policy, and India's ambitious climate commitments under the Paris Agreement. The Ethanol Blended Petrol (EBP) Programme, launched in 2003 and significantly accelerated after 2014, initially relied heavily on molasses — a byproduct of sugar production. This made sense when sugar surplus coincided with high crude prices, creating a natural economic alignment. However, the 2022-23 global crude price crash, driven by post-pandemic demand fluctuations and geopolitical factors including the Russia-Ukraine conflict, altered this calculus dramatically. With petrol prices falling, the fixed remunerative price for ethanol from sugarcane juice/syrup (₹65.6/litre for 2023-24) became economically unviable for oil marketing companies (OMCs), while maize-based ethanol, priced at ₹58.5/litre, emerged as the competitive alternative. This transition involves multiple stakeholders with often competing interests. The Department of Food and Public Distribution (DFPD) under the Ministry of Consumer Affairs manages sugar policy and ethanol pricing through the Ethanol Supply Year (ESY) mechanism. The Ministry of Petroleum and Natural Gas oversees the EBP programme implementation through OMCs like IOC, BPCL, and HPCL. Farmers in traditional maize-growing states — Karnataka, Madhya Pradesh, Maharashtra, and Bihar — have found a lucrative new market, with maize procurement by distilleries rising from 2.5 lakh tonnes in ESY 2021-22 to over 30 lakh tonnes in ESY 2023-24. Meanwhile, the poultry and starch industries, traditional maize consumers, face input cost inflation, raising concerns under the Essential Commodities Act, 1955 framework. Constitutionally, this sits at the intersection of multiple entries. Agriculture (Entry 14, State List) and trade in foodstuffs (Entry 33, Concurrent List) give both Centre and states regulatory space. The Centre's invocation of the Industries (Development and Regulation) Act, 1951 to control ethanol pricing reflects the Union's power over industries declared expedient in public interest (Entry 52, Union List). The National Policy on Biofuels, 2018 (amended 2022) provides the overarching framework, advancing the 20% blending target from 2030 to 2025-26 (ESY 2025-26). The food security implications are profound. India's maize production of ~38 million tonnes (2023-24) must now serve human consumption, poultry feed (60% of demand), starch industry, and ethanol — a four-way competition. The NITI Aayog's 2021 report estimated 16.5 million tonnes additional maize requirement for 20% blending, necessitating either yield improvement (current 3.1 tonnes/hectare vs global 5.8) or area expansion. This risks diverting land from pulses and oilseeds, where India remains import-dependent, potentially undermining the National Food Security Act, 2013's nutritional goals. Economically, the programme has reduced oil import dependence — saving an estimated ₹54,000 crore in forex in 2023-24 — and provided income diversification for farmers. However, the water footprint is concerning: maize requires 900-1,200 litres/kg ethanol vs sugarcane's 2,500+ litres, but expanded cultivation in water-stressed regions like Marathwada could exacerbate groundwater depletion, contravening the spirit of Article 48A (environmental protection) and Article 51A(g) (fundamental duty to protect environment). Looking ahead, the 2025-26 target of 1,016 crore litres ethanol demand (for 20% blending) will require ~16.5 million tonnes maize annually — nearly 45% of current production. This necessitates a second green revolution in maize: hybrid seed adoption, precision farming, and possibly GM varieties (currently not permitted for food crops). The recently launched National Mission on Edible Oils-Oil Palm (NMEO-OP) and proposed National Mission on Maize could provide institutional support. Internationally, India's experience offers lessons for Global South nations balancing biofuel mandates with food sovereignty, particularly as the WTO's Agreement on Agriculture disciplines on export subsidies and domestic support come under scrutiny. The coming years will test whether India can achieve energy transition without compromising nutritional security — a challenge that sits at the heart of sustainable development governance.