Three unfinished courtships, one company, the same year

TruAlt Bioenergy is India's largest ethanol producer by installed capacity and, since a September 2025 IPO, a publicly listed one. A CRISIL Market Intelligence & Analytics report on the company, dated 16 August 2024, described three separate, unfinished arrangements for TruAlt's push into compressed biogas (CBG), each at a different, explicitly non-final stage: a term sheet with GAIL (India) for equity in a CBG joint venture, described as "contingent upon successful due diligence and necessary approvals"; a non-binding MOU with BPCL, which the report itself stated "does not impose any legal obligation on the parties to finalize a formal agreement"; and, per TruAlt's own later IPO filings, MOUs signed with a Japanese trading and gas company and specifically with Sumitomo Corporation Asia & Oceania, dated 25 October 2024.

Two of those three arrangements have since converted into real, binding, publicly disclosed deals. The third has not been heard from since.

GAIL: term sheet to completed deal in about eighteen months

GAIL and TruAlt executed a binding Share Subscription-cum-Shareholders' Agreement on 11 August 2025 for Leafiniti Bioenergy Private Limited, a wholly owned TruAlt subsidiary. The transaction then moved through the standard central-PSU approval chain: DIPAM concurrence on 22 January 2026, formal approval from the Ministry of Petroleum and Natural Gas on 4 February 2026, and completion on 18 March 2026, when GAIL subscribed to 1,35,43,215 equity shares (₹10 face value) for an aggregate ₹13,54,32,150 — roughly ₹13.54 crore — confirming a 49 per cent stake, with TruAlt retaining 51 per cent.

What the JV is now building, per its own disclosed plan: six greenfield CBG plants of 12 tonnes-per-day capacity each, across Karnataka, Maharashtra and Odisha, with a combined projected annual output of 23,976 tonnes of CBG, roughly 97,902 tonnes of Fermented Organic Manure and about 470,862 tonnes of Liquid Fermented Organic Manure, and an estimated 820 to 1,225 jobs. This sits alongside, not on top of, Leafiniti's pre-existing plant — a single 10.2 TPD press-mud-fed CBG unit at Bagalkot, Karnataka, whose foundation stone was laid back in 2020, from the original SATAT-scheme era, before GAIL's involvement.

Sumitomo: the same pattern, inked in Tokyo

TruAlt's other 2024-era MOU followed an almost identical arc. The Sumitomo Corporation Asia & Oceania arrangement, disclosed as a non-binding MOU dated 25 October 2024, converted into a binding Joint Venture Agreement and Share Purchase Agreement signed in Tokyo around 11 November 2025. Sumitomo took a 49 per cent stake in what was TruAlt Gas Private Limited, renamed TruAlt Sumi Gas Private Limited on completion, with TruAlt retaining 51 per cent — the identical ownership split used in the GAIL deal. The joint venture's stated target is 16 CBG plants over three years.

BPCL: no deal, no announced end, just silence

BPCL's arrangement is the one that hasn't moved. As of the 2024 CRISIL report, it was a non-binding MOU carrying no disclosed equity split, no investment figure, no plant count, and no location — a scope described only qualitatively, covering feedstock and land sourcing, plant operation and maintenance, and marketing of CBG and its by-products. Searching for any update since then — a signed joint-venture agreement, a share purchase agreement, a public statement that the MOU lapsed or was abandoned — turned up nothing. Not a deal, and not an announced death, either: the arrangement simply stopped appearing in the public record.

The only 2025-26 news connecting BPCL and TruAlt at all belongs to a different part of TruAlt's business entirely: BPCL, alongside HPCL, Indian Oil and Mangalore Refinery, issued ethanol-supply Letters of Award to TruAlt worth roughly ₹390 crore in mid-2025, and a February 2026 Karnataka High Court matter, TruAlt Bioenergy vs. Union of India, concerned representations made to those same oil marketing companies over an ethanol tender — TruAlt's core ethanol-supply relationship with BPCL, not the CBG venture the 2024 MOU described.

What would fix this

• TruAlt, as a listed company since its September 2025 IPO, should disclose the current status of every material MOU it has announced — not only the ones that convert into deals. A quiet MOU currently reads identically to one still under active negotiation and one that has been quietly dropped; only TruAlt or BPCL can resolve which this is.
• BPCL should issue a clear public statement on whether it still intends to pursue a CBG joint venture with TruAlt, or considers the 2024 MOU lapsed, rather than leaving trackers and competitors to infer status from an absence of news.
• MoPNG and PNGRB's CBG-scheme tracking should record OMC-partnered CBG capacity by deal stage — MOU, binding joint venture, or operational — rather than only aggregate plant counts, so a piece like this one doesn't have to be reconstructed by hand from scattered corporate filings and trade press.
• GAIL and TruAlt should clarify what capital structure is actually funding the six new Leafiniti plants' construction, given how far the closed ₹13.54 crore equity figure sits from the $72 million estimate that circulated in 2024, so outside observers aren't left extrapolating from a stale, pre-deal number.

These are proposals from this blog, not recommendations any agency has adopted.

Sources and caveats

About this article: Researched, written and edited by Umashankar Triplicane Dwarakanathan, with AI research assistance; every figure is meant to trace to the primary source cited. See the Editorial Policy for how sourcing, AI use and corrections work.