Scope 3 and BRSR: How Indian Exporters Should Prepare for Global Supply Chain Disclosure Demands

An Indian manufacturer with European customers is now being asked for emissions data by two entirely separate authorities, for two entirely different purposes, on two different timetables. SEBI wants BRSR Core, assured, because the company is listed. The German or Dutch buyer wants product level carbon figures, because that buyer has its own Scope 3 obligation and cannot fill it without supplier data.

Most Indian exporters are treating these as one project. They are not. The overlap is real but partial, and the gap between what BRSR Core produces and what a European buyer needs is where deals are quietly being lost.

There is also a widespread and costly misunderstanding about the EU's recent simplification package, which many Indian suppliers have read as protection. On emissions data specifically, it is not.

The Domestic Baseline: What BRSR Core Already Gives You

Start with what a listed Indian exporter already has.

BRSR Core requires listed companies to report nine ESG attributes with several dozen KPIs beneath them, and to obtain either reasonable assurance or an independent assessment against Industry Standards Forum standards. The phasing has reached the top 500 companies for FY 2025-26 and extends to the top 1,000 for FY 2026-27, ranked by market capitalisation as at 31 March.

The nine attributes cover greenhouse gas footprint, water, energy, waste and circularity, employee wellbeing and wages, gender diversity, inclusive development, fairness in dealing with customers and suppliers, and openness of business.

Two things about that list matter enormously for export readiness.

The GHG attribute is built around Scope 1 and Scope 2 only. SEBI's prescribed format defines it as GHG emission intensity, expressed as total Scope 1 and Scope 2 emissions divided by revenue from operations adjusted for purchasing power parity, and again against total output of product or services. Scope 3 is not one of the assured Core attributes. It sits among BRSR's leadership indicators, which are voluntary. Value chain ESG disclosure sits in a separate part of the framework again, is currently voluntary, applies to the top 250 companies from FY 2025-26, and uses a threshold of partners individually accounting for 2 per cent or more of purchases or sales.

And the reporting unit is the company. BRSR Core produces entity level and intensity figures, calculated on a financial year basis, presented in an annual report. The purchasing power parity adjustment is designed to help global comparability of the ratio, which is useful, but it does not turn an intensity ratio into a product figure.

So a company that has done BRSR Core properly has something genuinely valuable: assured Scope 1 and 2 data, a documented methodology, and internal controls that survived third party scrutiny. What it does not have is what most European buyers are actually asking for.

The Four Pressures Coming from the Buyer Side

European and UK demands on Indian suppliers arrive through four separate channels. They are frequently conflated, and they require different things.

The CSRD and ESRS channel. Large EU companies report Scope 3 emissions under ESRS E1, which now applies from financial year 2027 following the revised standards adopted in July 2026. Post Omnibus, the CSRD catches companies with more than 1,000 employees and more than 450 million euro in turnover. Fewer buyers are in scope than before, but those that remain are the large ones that dominate Indian export relationships, and their Scope 3 inventories depend on supplier data across fifteen categories.

The UK channel. UK SRS S1 and S2 were published in February 2026 and remain voluntary. The FCA has proposed mandatory S2 for listed companies for accounting periods beginning 1 January 2027, with Scope 3 effectively optional in that first year and comply or explain from 1 January 2028. UK pressure on suppliers is therefore real but roughly a year behind the EU, and softer in character, because a UK buyer can explain a data gap in a way an EU buyer largely cannot.

The CBAM channel. This is the hardest and most immediate, because it is financial rather than informational. The Carbon Border Adjustment Mechanism entered its definitive phase on 1 January 2026, covering cement, iron and steel, aluminium, fertilisers, electricity and hydrogen. EU importers must now surrender certificates against the embedded emissions in covered goods, priced against the EU Emissions Trading System. The Commission published the first quarterly certificate price on 7 April 2026 at 75.36 euro per tonne of carbon dioxide equivalent for first quarter imports, and the second quarter price on 6 July 2026 at 75.28 euro. Certificate sales open on 1 February 2027, and the first annual declaration, covering 2026 imports, is due by 30 September 2027. The penalty for uncompensated emissions is 100 euro per tonne, indexed to European consumer prices.

The legal obligation sits with the EU importer, not the Indian exporter. That is precisely why it lands on the exporter commercially. Where verified installation level emissions data is unavailable, the importer must use EU default values, which are deliberately set toward the high end of each sector's range.

The size of that penalty is not theoretical. Analysis by CarbonChain following the first price publication calculated that Indian hot rolled coil imports under one common tariff code would carry a CBAM cost of around 254 euro per tonne for first quarter clearances using default values, and that using actual verified values could cut that figure roughly fivefold. Same steel, same shipment, different data. That gap is the entire commercial case for investing in verified emissions data.

One practical route is underused: an Indian installation can register voluntarily in the CBAM registry through the operator module and share its verified embedded emissions data centrally, so that European importers or authorised declarants can rely on it directly rather than requesting it deal by deal.

The due diligence channel. The EU Deforestation Regulation applies from 30 December 2026 for large and medium operators and 30 June 2027 for micro and small ones, covering cattle, cocoa, coffee, palm oil, rubber, soy and wood plus derivatives. For Indian exporters in coffee, natural rubber, leather and wood products, this means geolocation data proving production land was not deforested after 31 December 2020, alongside evidence of compliance with local law on land rights, labour, human rights and taxation. Note that Omnibus does not touch EUDR, so a buyer that has dropped out of CSRD scope may still be subject to deforestation due diligence, and will still push those requirements down the chain.

The Simplification Trap

Here is the point most Indian suppliers have wrong.

The Omnibus package introduced a value chain cap, which prevents CSRD reporting companies from requiring value chain partners with 1,000 employees or fewer to provide more sustainability information than the new voluntary standard for smaller companies covers. It has been widely reported, correctly, as protection for smaller suppliers against unbounded data requests.

The cap does not extend to gross Scope 1, Scope 2 and Scope 3 greenhouse gas emissions under ESRS E1-8. Emissions data is explicitly carved out.

For an Indian supplier below 1,000 employees, the practical translation is blunt. Your European customer's ability to demand broad sustainability information from you is now limited. Its ability to demand your emissions data is not. The one category most suppliers hoped had been simplified away is the one that survived.

Anyone who has read the Omnibus coverage and concluded that carbon questionnaires will ease off has drawn exactly the wrong inference.

Where BRSR Core Helps, and Where it Stops

This is the gap analysis worth doing carefully, because it determines how much additional work an exporter actually faces.

What transfers well. The assurance discipline is the biggest asset. A company that has been through BRSR Core assurance or assessment has already built traceability from reported figures back to source documents, written calculation methodologies, named data owners, and retained evidence. European buyers and CBAM verifiers want the same qualities. The GHG Protocol basis is common ground, since BRSR Core and the EU and UK regimes all rest on it. Scope 1 and 2 numbers, once assured, are reusable.

What does not transfer. Three gaps recur.

The first is granularity. BRSR Core reports emissions intensity at entity level across a financial year. CBAM requires embedded emissions at installation and product level, calculated using EU prescribed methodologies. A buyer asking for the carbon footprint of a specific product line cannot use a company wide intensity ratio. Converting one into the other is a real piece of work involving allocation methodology, not a reformatting exercise.

The second is Scope 3 itself. Because Scope 3 sits outside BRSR Core's assured attributes and value chain reporting remains voluntary, most Indian exporters have no Scope 3 inventory at all. When a European customer asks where your emissions sit across purchased goods, transport and processing, BRSR Core provides no answer. That is a new build.

The third is verification standards. BRSR Core assurance follows Indian standards through providers meeting SEBI's independence rules. CBAM in the definitive phase requires independent third party verification under EU prescribed approaches, with verifiers accredited under ISO 14065 or through arrangements recognised by the EU. Indian certification bodies have been moving into this space, but an existing BRSR assurance provider is not automatically an acceptable CBAM verifier.

The honest summary: BRSR Core gets an exporter perhaps sixty per cent of the way to what a demanding European buyer wants, and the remaining forty per cent is the part that determines pricing.

What Buyers are Actually Asking for

Requests from European and UK customers tend to arrive in a recognisable sequence, and knowing the sequence helps you prepare rather than react.

First comes a general ESG or sustainability questionnaire, often generic and lightly reviewed. Then a specific request for Scope 1 and Scope 2 emissions with a stated methodology and boundary. Then product or shipment level carbon intensity, which is where most suppliers stall. Then verification evidence, meaning who checked the numbers and under what standard. For CBAM covered goods, installation level data using EU methodology. For EUDR commodities, geolocation and legality documentation entirely separate from emissions.

Two patterns are worth internalising. Buyers increasingly prefer suppliers who can answer quickly over suppliers with better numbers, because a fast credible answer reduces the buyer's own compliance risk. And a documented estimate, clearly labelled with its method, is generally accepted where primary data does not exist. An unexplained number is not.

Practical Preparation

For an exporter with meaningful European or UK exposure, the sequence that works is roughly this.

Map your exposure by regulation rather than by customer. Identify which of your products fall under CBAM's six categories, which involve EUDR commodities, and which customers are large enough to be inside CSRD or UK SRS scope. These produce different obligations and there is no single answer covering all of them.

Extend Scope 1 and 2 from entity level to installation and product level. This is the highest value single step, because it serves CBAM directly and supports every buyer request for product carbon intensity. It also requires an allocation methodology, which needs to be decided deliberately and documented.

Start a Scope 3 screen even though nothing in Indian regulation requires it yet. Your buyers are building fifteen category inventories and your data is inside them. A rough screening estimate across categories tells you where your own emissions concentrate and what you will eventually be asked about.

Check verifier accreditation before you appoint anyone. For CBAM, confirm the verifier's accreditation is recognised for that purpose. Discovering the mismatch after the engagement is expensive.

Use BRSR Core reporting as a marketing asset, not just a compliance filing. Assured Scope 1 and 2 data with documented methodology is genuinely more than many suppliers in competing jurisdictions can offer, and it is worth saying so explicitly in commercial conversations rather than leaving buyers to discover it.

The Strategic Read

Indian exporters are experiencing something that will not reverse. The regulatory direction in Europe has softened at the edges through Omnibus, and the UK has phased its Scope 3 obligation gently, but the underlying demand for supplier emissions data has not softened at all, because the buyers' own obligations still depend on it. CBAM has made that demand financial rather than merely administrative.

The companies that will hold their European market positions are not the ones with the lowest emissions. They are the ones who can produce credible, verified, product level numbers on request. That is a data and controls capability, and BRSR Core, for all its gaps, is a genuinely useful head start on building it.

Exporter Checklist

Confirm your BRSR Core cohort by market capitalisation, top 500 for FY 2025-26 and top 1,000 for FY 2026-27, and treat that assurance discipline as the foundation for export readiness.
Identify which products fall within CBAM's six covered categories and quantify your exposure against published certificate prices, which have run around 75 euro per tonne through 2026, noting that verified actual data can cut the cost several times over versus default values.
Move Scope 1 and 2 data from entity level intensity to installation and product level, with a documented allocation methodology.
Consider registering your installation voluntarily in the CBAM registry so European buyers can access verified data centrally.
Confirm that any CBAM verifier you appoint holds accreditation recognised for that purpose, since a BRSR assurance provider does not automatically qualify.
Do not rely on the Omnibus value chain cap for emissions data, because ESRS E1-8 GHG metrics are carved out of it.
Begin a Scope 3 screening exercise even though Indian value chain reporting is still voluntary.
For coffee, rubber, leather and wood exports, build EUDR geolocation and legality documentation ahead of 30 December 2026.
Prepare a standard buyer data pack covering methodology, boundary, verification status and known gaps, so requests can be answered quickly.
Label estimates clearly with their basis, since documented estimates are usually accepted while unexplained figures are not.

Position as of July 2026. CBAM certificate obligations, the revised ESRS, UK SRS rules and EUDR timelines are all at different stages and some remain subject to consultation or further amendment. Confirm current requirements against SEBI, the European Commission, the FCA and your buyers' own specifications, and take professional advice for your circumstances.

Sources

Securities and Exchange Board of India, Industry Standards Forum, European Commission, Department for Business and Trade, Financial Conduct Authority, World Resources Institute, KPMG India, BDO India, Uniqus Consultech, Vinod Kothari Consultants, Global Trade Research Initiative, CarbonChain, Fastmarkets, Eurometal, Institute of Company Secretaries of India, Eco-Act, Coolset

This article is intended for general professional information and does not constitute legal, financial, or investment advice.