An Indian supplier can receive a request for emissions data without a new law requiring every small business to publish a climate report.
The distinction is between what a regulator asks a listed company to disclose and what a customer asks its suppliers to provide. Customer requests can matter commercially even when the specific value-chain disclosure provision is voluntary.
The Breakdown
SEBI’s January 2026 master circular keeps value-chain environmental, social and governance (ESG) disclosures voluntary for the top 250 listed entities by market capitalisation from FY 2025–26. Assessment or assurance of those disclosures is voluntary from FY 2026–27.
That is different from the mandatory, phased assessment or assurance of listed entities’ own BRSR Core, a subset of the Business Responsibility and Sustainability Report framework. That requirement covers the top 1,000 listed entities by market capitalisation in FY 2026–27.
These provisions should not be described as a new, universal Scope 3 reporting obligation for Indian MSMEs. Nor should voluntary value-chain reporting be confused with the absence of customer requirements. These SEBI provisions do not determine every environmental obligation or contractual requirement that a supplier may face.
Scope 3 covers indirect emissions across a company’s value chain, excluding the purchased-energy emissions counted in Scope 2. Producing materials a company buys can therefore contribute to its Scope 3 footprint, even though production takes place at a supplier’s factory.
Where the customer comes in
Unilever’s Supplier Climate Programme illustrates the mechanism. The company says selected suppliers, large and small, are supported in measuring and sharing product carbon-footprint data. It also describes climate clauses in programme suppliers’ contracts and assistance with decarbonisation plans.
Its India-related work includes support for collaborative manufacturers purchasing renewable energy certificates and technical assistance for tea estates. Hindustan Unilever separately describes supplier collaboration as part of reducing emissions across its own value chain.
These are company descriptions of particular programmes. They do not establish that every Indian supplier faces the same conditions, that all participants are MSMEs, or that businesses without emissions data have automatically lost orders.
The narrower point is useful: a customer can organise its procurement around climate objectives without waiting for a universal supplier-reporting law.
Why This Matters
For a supplier receiving a questionnaire, the first task is to understand the request. Does the buyer want a factory’s electricity and fuel records, a product carbon footprint, or a wider company inventory? What period and production boundary should the numbers cover?
Those are not interchangeable deliverables. A total factory figure does not, by itself, say how emissions should be assigned to a particular product.
The buyer also has a role. Clear templates, consistent boundaries and practical support can make a request more useful than a demand for a single unexplained number. Existing energy records may provide a starting point, while missing data and estimates need to be identified rather than disguised as precise measurements.
The Crunch
A voluntary disclosure framework does not make supplier data irrelevant. Equally, a buyer’s request is not proof of a new nationwide mandate.
For Indian suppliers and their customers, the practical question is specific: what information is needed, for which business relationship, and how can it be produced credibly?
Related categories: Economy & Markets; Infrastructure & Manufacturing
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