Prime Minister inaugurated the ₹5,000-crore bamboo-based ethanol plant at Numaligarh Refinery in Golaghat district, Assam, on September 14, 2025.
The plant uses balco (Bambusa balcooa) and tulda (Bambusa tulda) varieties of bamboo, chosen for their high cellulose content ideal for ethanol production.
The facility is designed to produce 48,900 metric tonnes of ethanol annually, along with acetic acid, furfural, and food-grade liquid carbon dioxide.