Home › Research › ESG Disclosures
✓ Top 1,000 Rollout Analysis (Sept 2026)
India's BRSR Core: The Mandatory Sustainability Disclosure Framework Building India's Industrial GHG Data Infrastructure
BRSR Core is SEBI's assured-disclosure sub-framework, rolling out to the full top 1,000 listed companies by FY2026-27. It requires reasonable assurance on nine core ESG attributes, including Scope 1 and Scope 2 GHG emissions. For industrial companies obligated under the active CCTS, the two frameworks draw on overlapping plant-level emissions data, though they differ heavily in verification standard, boundary, and recipient. Building that data capability once provides knock-on benefits for CBAM documentation and EU customer data requests.
Key Takeaways
- The Business Responsibility and Sustainability Report (BRSR) became mandatory for the top 1,000 listed companies from FY2022-23. BRSR Core, introduced in 2023, is a more demanding sub-set requiring assured (third-party verified) disclosure of nine core ESG attributes spanning greenhouse gas emissions, energy, water, waste, gender diversity, and job creation.
- BRSR Core assurance followed a phased "glide path" by market capitalisation. With the current compliance cycle, it expands to the full top 1,000 listed companies by FY2026-27.
- Within the GHG attribute, BRSR Core requires total Scope 1 emissions, total Scope 2 emissions (both location-based and market-based), and GHG intensity per unit of revenue. SEBI separately introduced a value-chain disclosure requirement covering select upstream/downstream partners, though this was eased to a "comply or explain" basis in 2025.
- Reasonable assurance is a higher verification standard than the limited assurance typically used for voluntary ESG disclosures. BRSR Core assurance providers are SEBI-recognised assurance firms rather than a defined shortlist of specific financial auditors.
- Non-compliance with BRSR Core disclosure or assurance requirements attracts SEBI regulatory action under its standard listed-company enforcement framework, separate from the CERC penalty regime governing the new carbon market.
Why this matters for CCTS obligated companies
For the subset of large industrial companies that are both on the BRSR Core glide path and separately obligated under the Carbon Credit Trading Scheme (CCTS), the two frameworks are not identical, but they draw on related underlying data. Both require Scope 1 and Scope 2 GHG measurement and third-party verification. Both concern the same physical activities: fuel combustion, process emissions, and purchased electricity.
However, they are measured and verified differently. BRSR Core reports at the consolidated company level to SEBI, with reasonable assurance; CCTS reports at the individual plant or facility level to BEE's ICM Registry, with limited assurance from an accredited ACVA. Companies that design their plant-level GHG measurement systems with both reporting boundaries in mind can avoid duplicating data-collection effort, though reconciling facility-level CCTS data into a consolidated, revenue-intensity BRSR Core figure requires deliberate boundary mapping.
This overlap is most relevant to companies that sit at the intersection of both frameworks. Companies outside CCTS scope, or below the top 1,000 BRSR Core threshold, face a different, typically lighter near-term compliance picture.
BRSR Core vs CCTS MRV: where they overlap and where they diverge
BRSR Core vs CCTS MRV — Comparison for Industrial Companies (Sept 2026)
| Dimension | BRSR Core (SEBI) | CCTS MRV (BEE) | Integration Consideration |
|---|---|---|---|
| GHG Scope | Scope 1, Scope 2 (location- and market-based), plus defined value-chain disclosure | Scope 1 direct + Scope 2 grid electricity (gate-to-gate GEI) | Scope 1 and Scope 2 data sources are related; value-chain disclosure is BRSR-specific and narrower than full Scope 3. |
| Reporting boundary | Consolidated company (all facilities in financial consolidation) | Individual plant or facility (each CCTS obligated unit separately) | CCTS plant data can inform a BRSR company total, but boundary reconciliation is a deliberate step. |
| Verification standard | Reasonable assurance (higher rigour than limited assurance) | Limited assurance (ACVA third-party verification) | CCTS limited assurance does not automatically satisfy BRSR Core's higher assurance bar. |
| Verification frequency | Annual (with the Annual Report) | Annual (ahead of the CCTS compliance deadline) | Both are annual cycles, which creates scheduling, though not automatic scope synergies. |
| Primary recipient | SEBI, via the Annual Report and stock exchange disclosure | BEE, via the ICM Registry, feeding into CCC compliance determination | Different recipients and purposes — underlying data supports both filings. |
| Intensity metric | GHG intensity per rupee of revenue | GHG emission intensity per unit of physical output | Converting between the two requires precise production and revenue data mapping. |
A note on CBAM and CSDDD: related but separate regimes. BRSR Core, the EU CBAM, and the EU's Corporate Sustainability Due Diligence Directive (CSDDD) are distinct regulatory regimes with different legal bases and enforcement mechanisms. BRSR Core compliance does not legally satisfy CBAM obligations. What connects them is the urgent need for verified, auditable data.
BRSR Core's value-chain disclosure requirement helps Indian industrial exporters build the kind of verified emissions data that their EU customers are demanding. The CSDDD pushes EU steel users and auto manufacturers to manage emissions embedded in their supply chains. Indian suppliers are not directly regulated by CSDDD, but face growing requests from EU customers for supplier-level emissions data as a practical consequence. Companies building reliable data through BRSR Core are directly upgrading their capability for EU customer engagement and CBAM-related documentation.
Frequently Asked Questions
What are the nine BRSR Core attributes that require reasonable assurance?
BRSR Core organises its assured disclosures around nine core ESG attributes, covering: greenhouse gas emissions, energy consumption, water consumption, waste management, employee well-being and gender diversity, pay parity, job creation, business openness, and other NGRBC-aligned indicators. The GHG, energy, water, and waste attributes carry the most significant data infrastructure implications for industrial companies.
Does BRSR Core require full Scope 3 emissions reporting?
No. BRSR Core's GHG attribute centres on Scope 1 and Scope 2. SEBI has separately introduced a value-chain disclosure requirement covering select upstream and downstream partners. This is a narrower, phased obligation, not a blanket requirement to report across all Scope 3 categories, and elements were eased to a voluntary "comply or explain" basis in 2025.
How does BRSR Core's location-based vs market-based Scope 2 distinction relate to CBAM?
BRSR Core asks companies to disclose both location-based Scope 2 (using a national average grid emission factor) and market-based Scope 2 (using the emission factor associated with contracted electricity). CBAM's embedded-emissions calculation uses its own methodology for the electricity actually consumed at a facility, which does not map one-for-one onto either BRSR figure. Companies should treat BRSR Core's Scope 2 figures as a useful data input for CBAM preparation, not as a direct substitute for CBAM compliance.
Sources
- SEBI — BRSR Framework notification and BRSR Core circulars, including the phased glide-path schedule
- SEBI — BRSR Core assurance requirements and guidance for assurance providers
- Bureau of Energy Efficiency — CCTS MRV methodology and ICM Registry procedures
- European Commission — CSDDD — EU Corporate Sustainability Due Diligence Directive, phase-in timeline and scope