As the ISSB's IFRS S1 and S2 become the global baseline for sustainability and climate disclosure, Indian teams increasingly ask how their mandatory BRSR filing relates to them. The short answer: they share a spine, but IFRS S2 goes far deeper on climate while BRSR spreads across all of ESG. This guide maps the two and shows how BRSR data can jump-start an IFRS S2 disclosure.
Key takeaways
- 01IFRS S1 (general sustainability) and S2 (climate) are the ISSB's global baseline; TCFD is now consolidated into S2.
- 02BRSR is mandatory in India; IFRS S1/S2 are not (yet), but global investors increasingly expect them.
- 03BRSR's governance, risk and Scope 1 & 2 data map onto IFRS S1/S2; the frameworks share that spine.
- 04IFRS S2 asks for more on climate: scenario analysis, transition plans and financed emissions, which BRSR does not require.
What IFRS S1 and S2 are
The International Sustainability Standards Board (ISSB) issued IFRS S1 (general requirements for sustainability-related financial disclosure) and IFRS S2 (climate-related disclosures) as an investor-focused global baseline. IFRS S2 absorbed the TCFD's four-pillar structure: governance, strategy, risk management, and metrics and targets. Many jurisdictions are adopting or referencing them; India has not mandated them, but the direction of travel is clear.
Where BRSR maps to IFRS S1 and S2
BRSR's governance, risk-management and environmental disclosures line up with the IFRS S1/S2 pillars. Here is a representative crosswalk, one disclosure per principle where a mapping exists, from Saaksh's cited alignment data:
| BRSR disclosure | IFRS S1 / S2 reference |
|---|---|
| ESG oversight by highest governance body | IFRS S1 Para 26; IFRS S2 Para 5 |
| R&D / capex investment in sustainable products and processes | IFRS S2 Para 29(g) |
| Health and Safety Management System (OHSMS) coverage | IFRS S2 Para 21 (climate resilience, workforce physical risk, indirect) |
| Key stakeholder groups identified by the entity | IFRS S1 Para 26-27 (governance process includes stakeholder consideration) |
| Human rights due diligence in operations and value chain | IFRS S1 Para 36 (risk management process, broadly) |
| Total electricity consumption (MWh) | IFRS S2 Para 29(a) |
| Public policy positions on ESG (advocacy, lobbying disclosures) | IFRS S2 Para 14(a)(iv) (climate-related public policy engagement as part of transition plan) |
| CSR projects benefiting marginalized communities (SC/ST, differently abled, women) | IFRS S2 Para 14(a) (transition plan, social considerations, indirect) |
| Data privacy, complaints and breaches | IFRS S1 Para 28 (general risk/opportunity, if material) |
Where the gaps are
- Climate depth: IFRS S2 requires climate scenario analysis and a transition plan; BRSR asks for emissions and targets but not scenarios.
- Financial connection: IFRS S1/S2 tie sustainability to financial effects and enterprise value; BRSR is a standalone responsibility report.
- Breadth: BRSR covers all nine NGRBC principles (human rights, communities, consumers and more); IFRS S1/S2 focus on what is financially material to investors, with S2 zeroed in on climate.
- Scope 3: IFRS S2 expects Scope 3 disclosure (including financed emissions for financial firms); under BRSR it is a voluntary leadership indicator.
Using BRSR data for IFRS S2
A running start on IFRS S2
Best practice
- Get Scope 1 & 2 right first (assured under BRSR Core); they anchor both BRSR and IFRS S2.
- Document board oversight and the climate risk-management process once, in a form both frameworks accept.
- If you have global investors, start scenario analysis early, it is the piece BRSR won't have prepared you for.
See BRSR mapped to IFRS, TCFD, GRI and TNFD
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