BRSR Core vs CSRD for an Indian Listed Entity with an EU Subsidiary
BRSR Core vs CSRD for Indian listed entities with EU subsidiaries. Post-Omnibus thresholds, shared data, assurance, NESRS, 3 configurations.
Who this page is for
You are a finance / sustainability / company-secretary lead at an Indian listed entity. You are in SEBI’s BRSR Core market-cap cohort (Top 1,000 by 31 March of the relevant FY). You also have an EU subsidiary or branch — possibly material, possibly small. You are asking the practical question: does CSRD apply to me, and if so, how does it interact with the BRSR Core engagement I am already running?
This page answers that. It compares the two regimes side by side on the dimensions that drive your engagement plan: scope, materiality framework, assurance level, deadlines, deliverables, signatory framework. It then lays out three real-world configurations — dual scope, BRSR-only, CSRD-only — and what each means operationally.
We claim what we know about both regimes from primary sources (SEBI circulars + EU directives + ICAI standards + EFRAG materials). We do not claim provider-specific operational details about Big-Four-vs-specialist assurance delivery on CSRD — see the BatchWise vs Big-Four page for the provider-model comparison.
The 60-second decision matrix
| Your situation | BRSR Core? | CSRD applies? | What you file |
|---|---|---|---|
| Top 1,000 Indian listed, no EU operations | ✅ Yes (phased FY 2023-24 to FY 2026-27 by market-cap tier) | ❌ No | BRSR + BRSR Core (Indian filing) |
| Top 1,000 Indian listed, EU subsidiary < €450M turnover or < 1,000 employees | ✅ Yes | ❌ No (subsidiary below CSRD thresholds) | BRSR + BRSR Core only |
| Top 1,000 Indian listed, EU subsidiary individually > 1,000 employees AND > €450M turnover | ✅ Yes | ✅ Yes (subsidiary in direct CSRD scope) | BRSR + BRSR Core (Indian parent) + CSRD/ESRS (EU subsidiary) |
| Top 1,000 Indian listed, consolidated EU operations > €450M (2 consecutive years) AND EU subsidiary or branch > €200M | ✅ Yes | ✅ Yes (via NESRS Article 40a third-country regime) | BRSR + BRSR Core (Indian parent) + NESRS (EU-operations consolidated) |
| Indian SME supplier to a large EU customer | ❌ No (BRSR Core is for listed entities) | ❌ No (you do not have a CSRD obligation; you are protected by the value-chain cap) | Voluntary VSME if useful; no mandatory EU filing |
If your row is one of the first three, this page applies to you. The third and fourth rows (“dual scope”) are where the BRSR-Core-vs-CSRD interaction matters operationally. Rows 1 and 2 mean you are only running the Indian engagement; CSRD is informational.
Side-by-side comparison
Scope of disclosure
| Dimension | BRSR Core (SEBI) | CSRD (EU) |
|---|---|---|
| Who is in scope | Top 1,000 Indian listed entities by market cap (31 March of relevant FY); phased FY 2023-24 (Top 150) → FY 2026-27 (Top 1,000) | Post-Omnibus I: EU large undertakings + EU-listed entities with > 1,000 employees AND > €450M turnover; third-country parents with > €450M EU turnover (2 years) + EU subsidiary or branch > €200M |
| What’s reported | 9 mandatory BRSR Core attributes + the full BRSR Format (Section A, B, C across 9 NGRBC principles) | Full ESRS sustainability statement — ESRS 1 (general requirements), ESRS 2 (general disclosures), E1-E5 (environment), S1-S4 (social), G1 (governance); subject to materiality assessment |
| Materiality framework | SEBI-prescribed attribute list + entity-level materiality assessment for non-Core disclosures | Double materiality: impact materiality OR financial materiality (either limb sufficient) |
| Where it’s filed | BSE / NSE listing portals alongside the Annual Report | EU national audit registers; published with the entity’s management report |
| Format | SEBI BRSR Format (Annexure II) + XBRL filing | ESRS-prescribed format + XBRL tagging per the ESRS taxonomy |
Assurance regime
| Dimension | BRSR Core (SEBI) | CSRD (EU) |
|---|---|---|
| Assurance level | Reasonable assurance on the 9 BRSR Core attributes | Limited assurance on the full sustainability statement (indefinitely — Omnibus I removed the reasonable-assurance escalator) |
| Assurance standard | SAE 3000 (Revised) — ICAI’s standard for assurance engagements other than financial-statement audits | EU-Audit-Directive-equivalent standard; the CEAOB published limited-assurance guidelines September 2024 adapting ISAE 3000 (Revised) to sustainability reporting |
| Practitioner empanelment | ICAI / ICAI-Cost / ICSI-empanelled professional body | EU-Audit-Directive-equivalent assurance practitioner (statutory auditor or designated firm) |
| Signatory | Empanelled partner under their Certificate of Practice and DSC | EU-registered assurance partner |
| Independence framework | ICAI Code of Ethics; SAE 3000 threats-and-safeguards approach | EU Audit Directive independence framework |
Specific deep-dive: the 9 BRSR Core attributes vs ESRS coverage
| BRSR Core attribute | NGRBC Principle | Closest ESRS counterpart |
|---|---|---|
| Openness of business (related-party transactions) | P1 | ESRS G1 (Business conduct) |
| Spend on wellbeing | P3 | ESRS S1 (Own workforce — social protection / working hours) |
| Female wages as % of total wages | P3 | ESRS S1 (Own workforce — equal pay) |
| POSH complaints disclosure | P5 / P3 | ESRS S1 (Own workforce — health + safety) |
| Gender diversity (cohort + remuneration ratio) | P3 / P5 | ESRS S1 (Own workforce — diversity) |
| GHG intensity per revenue (Scope 1 + 2) | P6 | ESRS E1-6 (GHG emissions per net revenue) |
| Water withdrawal intensity | P6 | ESRS E3 (Water and marine resources) |
| Energy footprint | P6 | ESRS E1 (Energy consumption — non-renewable + renewable) |
| Waste circularity | P6 | ESRS E5 (Resource use and circular economy) |
| Job creation in smaller towns | P8 | ESRS S3 (Affected communities — economic development) |
The 9 BRSR Core attributes map cleanly to specific ESRS datapoints. The reverse does NOT hold — ESRS asks for hundreds of additional datapoints (E1-1 transition plan, E2 pollution, S2 value-chain workers, etc.) that BRSR Core does not require. So an Indian entity preparing BRSR Core can re-use most of that data for ESRS, but will need to expand significantly to reach ESRS completeness.
Disclosure framework details
| Dimension | BRSR Core (SEBI) | CSRD (EU) |
|---|---|---|
| Climate transition plan | Not formally required; Principle 6 narrative captures equivalent content | Mandatory under ESRS E1-1 — must be 1.5°C-compatible + 2050 EU climate-neutrality aligned; disclose absence + adoption timeframe if no plan exists |
| Scope 3 emissions | Comply-or-explain for top 250 listed entities from FY 2024-25; otherwise voluntary | Mandatory across ESRS E1 (full Scope 3 disclosure subject to materiality) |
| Value chain disclosure | BRSR Value Chain Verification for top contributors cumulatively to 75% of purchases / sales (top 250 listed FY 2024-25 on a comply-or-explain basis, per SEBI/HO/CFD/CFD-SEC-2/P/CIR/2023/122) | ESRS value-chain disclosure across all standards subject to double materiality |
| Industry-specific standards | NIC-classification informs entity-level materiality but not mandatory industry standards | ESRS Set 1 currently has no sector-specific standards (deferred under Omnibus simplification); SASB Industry Standards inform IFRS S2 |
| Future deepening | BRSR Core attribute set + scope may expand in subsequent SEBI circulars | ESRS Revised Set 1 (EC draft May 2026) reduces mandatory datapoints by > 60%; applies FY 2027+; opt-in FY 2026 |
The three dual-scope configurations
Configuration A: EU subsidiary individually in CSRD scope
Your Indian listed entity owns an EU subsidiary that, on its own, has more than 1,000 employees AND more than €450M net turnover for two consecutive financial years. The EU subsidiary is a CSRD-in-scope EU large undertaking in its own right.
What you file:
- The Indian parent: BRSR (Section A + B + C across 9 NGRBC principles) + BRSR Core reasonable-assurance over the 9 mandatory attributes; XBRL-tagged; filed with BSE / NSE alongside the Annual Report.
- The EU subsidiary: ESRS-aligned sustainability statement; XBRL-tagged per ESRS taxonomy; limited-assurance opinion; filed with the entity’s management report at the EU national audit register. The EU subsidiary’s filing covers the subsidiary’s operations only — not the global Indian group.
Assurance providers:
- BRSR Core: ICAI / ICAI-Cost / ICSI-empanelled partner CA firm; reasonable assurance under SAE 3000 (Revised). Coordinated through BatchWise via the BRSR Core Assurance service if engaging the BatchWise model.
- CSRD: EU-Audit-Directive-equivalent assurance practitioner — typically the EU subsidiary’s statutory auditor or a designated EU sustainability-assurance firm.
Operational sequencing:
- Build the BRSR Core reasonable-assurance evidence pack first (deeper bar on narrower scope; sets the GHG inventory + workforce + governance documentation baseline)
- Extend the evidence universe to cover the broader ESRS scope at limited-assurance depth
- Apply double materiality at the subsidiary level (impact + financial); the ESRS materiality assessment may surface topics not in BRSR Core scope (E2 pollution, E4 biodiversity, S3 affected communities)
- Coordinate the ESRS E1-1 transition plan disclosure with the entity-wide SBTi-validated targets if any (see Climate Transition Plan methodology)
Configuration B: Consolidated EU operations trigger third-country NESRS regime
Your Indian listed entity has consolidated EU operations exceeding €450M net turnover for two consecutive financial years, with at least one EU subsidiary OR branch exceeding €200M net turnover. No single EU subsidiary may meet the > 1,000-employees-AND-€450M test individually, but the consolidated EU operations exceed the threshold.
This triggers the third-country undertaking regime under CSRD Article 40a. Once NESRS is adopted by the European Commission (expected by 30 June 2026), you must file a consolidated EU-operations sustainability report at the parent-group level. First reporting year is FY 2028 (reports due 2029).
What you file:
- The Indian parent: BRSR + BRSR Core (as in Configuration A)
- The Indian parent (as third-country undertaking): NESRS consolidated EU-operations report — focused on EU-attributable activities + impacts, lighter than full ESRS Set 1; first filing for FY 2028
Practical implication: NESRS is a separate filing from any EU subsidiary’s own CSRD filing (if such a subsidiary also exists in Configuration A). Some Indian parent groups face both regimes — the EU subsidiary files CSRD/ESRS for its own operations, and the parent files NESRS at consolidated EU-operations level.
Configuration C: Indian SME supplier to a CSRD-in-scope EU customer
Your Indian SME is a supplier to a large EU customer that is itself a CSRD filer.
You do NOT face a direct CSRD obligation. The Omnibus I value-chain cap protects you: a CSRD filer cannot demand sustainability information from a value-chain partner with fewer than 1,000 employees beyond what the VSME standard contains, except for sector-typical commonly-shared information.
Voluntarily preparing a VSME report (Basic or Comprehensive Module — see the VSME glossary entry) may be useful for commercial reasons (reducing ad-hoc data requests, demonstrating ESG maturity to lenders + EU customers), but is not legally required.
Note: Indian SMEs are not in SEBI BRSR Core scope (BRSR Core applies only to listed entities). If you also operate the Indian SME without a listing, you face neither regime directly.
The shared data infrastructure
The 80/20 of dual-scope engagement preparation is that the same underlying data infrastructure feeds both filings:
| Data layer | BRSR Core need | CSRD/ESRS need |
|---|---|---|
| GHG inventory (Scope 1, 2, material 3) | Scope 1 + 2 mandatory for GHG intensity attribute; Scope 3 comply-or-explain for top 250 | Scope 1 + 2 + 3 mandatory across ESRS E1 (subject to materiality) |
| Workforce data (cohort, gender split, wages, POSH) | Mandatory for 4 BRSR Core attributes | Mandatory across ESRS S1 |
| Water + waste registers | Mandatory for 2 BRSR Core attributes | Mandatory across ESRS E3 + E5 |
| Energy footprint | Mandatory for 1 BRSR Core attribute | Mandatory across ESRS E1 |
| Governance documentation | Mandatory across BRSR + audit trail for BRSR Core | Mandatory across ESRS 2 + G1 |
| Value-chain partner identification (75% threshold) | BRSR Value Chain Verification phasing | ESRS value-chain disclosure subject to double materiality |
| Transition plan | Not formally required (narrative captures equivalent content) | Mandatory under ESRS E1-1 — 1.5°C-compatible |
The sensible sequencing: build the BRSR Core reasonable-assurance evidence pack first (deeper bar on a narrower scope), then extend the same data infrastructure to cover the broader ESRS scope at limited-assurance depth. The double-materiality assessment under ESRS will surface topics outside BRSR Core scope (e.g., E2 pollution, S3 affected communities) — for these, additional data capture is needed but the governance pattern is already in place.
Operational sequencing for a dual-scope Indian entity
For an Indian listed entity in Configuration A or B, the practical preparation sequence we observe (without claiming this is the only valid sequence):
- GHG inventory baseline + assurance (Year 1 Q1-Q2) — Scope 1 + Scope 2 inventory per GHG Protocol; SAE 3410 (or ISAE 3410) reasonable-assurance on the inventory; this anchors both BRSR Core’s GHG intensity attribute and ESRS E1 climate disclosure. See the ISAE 3410 service.
- Workforce + diversity data infrastructure (Year 1 Q1-Q3) — cohort breakdowns, female-wages percentages, POSH complaint disclosures, gender diversity ratios; supports 4 BRSR Core attributes + ESRS S1.
- Water + waste + energy registers (Year 1 Q2-Q3) — supports 3 BRSR Core attributes (water withdrawal intensity, energy footprint, waste circularity) + ESRS E3 + E5.
- Double-materiality assessment for ESRS (Year 1 Q3-Q4) — applies to the EU subsidiary (Config A) or to EU-attributable activities (Config B); identifies topics outside BRSR Core scope (E2, S2, S3, etc.) that need additional data capture.
- Transition plan documentation (Year 1 Q3-Q4) — mandatory under ESRS E1-1; covered conceptually under BRSR Principle 6 narrative. Anchor on SBTi-validated targets if any (see the SBTi India tracker for the population of validated Indian entities).
- BRSR Core reasonable-assurance engagement (Year 1 Q4) — first filing; produces the working-papers extract + signed opinion under SAE 3000.
- CSRD/NESRS limited-assurance engagement (Year 2 / FY 2027 onwards depending on configuration) — separate assurance provider; uses the data infrastructure built in steps 1-5.
Common misconceptions
- “If we file BRSR Core, we satisfy CSRD.” No. Different scopes, different materiality frameworks, different assurance providers, different filings. The data overlap is real but the deliverables are separate.
- “CSRD requires reasonable assurance from 2028.” No (anymore). Omnibus I (Feb 2026) removed the reasonable-assurance escalator. CSRD remains at limited assurance indefinitely.
- “Our Indian listed entity is in CSRD scope because we are large.” Only if (a) you have an EU subsidiary individually meeting the > 1,000-employees-AND-€450M test, OR (b) your consolidated EU operations exceed €450M (2 consecutive years) with an EU subsidiary or branch > €200M. Indian operations on their own do not trigger CSRD.
- “NESRS will be heavier than ESRS.” No. NESRS is expected to be lighter than full ESRS Set 1 — focused on EU-attributable activities only.
- “We can use the same Indian CA firm for both BRSR Core assurance AND CSRD limited assurance.” Typically no — CSRD requires an EU-Audit-Directive-equivalent practitioner. The same Indian CA firm may provide advisory + the Indian SAE 3410 GHG component, but the CSRD signing partner must meet EU equivalence.
Where to go next
- For the full CSRD architecture (post-Omnibus thresholds, ESRS Set 1, NESRS, VSME, value-chain cap, double materiality), see /methodology/csrd-disclosure-framework/
- For the BatchWise BRSR Core engagement model + pricing + 72-hour SLA, see /services/brsr-core-assurance/
- For the climate transition plan disclosure architecture (mandatory under ESRS E1-1), see /methodology/climate-transition-plan/
- For a 30-second BRSR Core scoping test, see the BRSR Core Readiness Self-Assessment tool
- For the population of Indian companies with SBTi-validated science-based targets (the most common transition-plan anchor), see /resources/sbti-india-2026/
Frequently asked questions
Which Indian listed entities face both BRSR Core AND CSRD obligations?
Three concrete patterns. (1) Indian listed entity in SEBI's BRSR Core market-cap cohort (Top 1,000 by 31 March, phased FY 2023-24 to FY 2026-27) that ALSO has a large EU subsidiary individually meeting the post-Omnibus CSRD thresholds — more than 1,000 employees AND more than €450M net turnover for two consecutive financial years. The subsidiary files CSRD; the Indian parent files BRSR + BRSR Core. (2) Indian listed entity in BRSR Core scope whose consolidated EU operations exceed €450M net turnover for two consecutive financial years AND have at least one EU subsidiary OR branch with net turnover above €200M — this triggers the third-country undertaking regime; parent files NESRS at consolidated EU-operations level (first reporting FY 2028) AND files BRSR + BRSR Core for the Indian listed entity. (3) Indian SME supplier to a large EU customer that is itself a CSRD filer — protected by the Omnibus value-chain cap from being asked for data beyond the VSME envelope; not technically a dual-regime case but worth flagging because many Indian SMEs assume they have CSRD obligations they don't.
What is the single biggest operational difference between BRSR Core and CSRD?
Assurance level. SEBI BRSR Core mandates **reasonable assurance** on the 9 mandatory BRSR Core attributes, performed under SAE 3000 (Revised) by an ICAI / ICAI-Cost / ICSI-empanelled professional body. CSRD mandates **limited assurance** on the full ESRS sustainability statement, performed by an EU-Audit-Directive-equivalent practitioner. Reasonable assurance is a positive 'true and fair' opinion requiring substantive procedures + internal-control testing; limited assurance is a negative-form conclusion ('nothing has come to our attention that…') requiring materially lighter procedures. The Omnibus I (Feb 2026) explicitly removed the original CSRD escalator to reasonable assurance by 2028 — limited assurance is now the only mandatory CSRD level indefinitely. So an Indian listed entity in dual scope sees a paradox: the Indian regime requires a higher assurance level on fewer attributes (9) than the EU regime requires limited assurance on (~12 ESRS standards covering hundreds of datapoints).
Does the same data infrastructure support both BRSR Core and CSRD?
Substantially yes. The underlying primary data — GHG inventory (Scope 1/2/3 per GHG Protocol), workforce data (cohort breakdowns, female-wages percentages, POSH complaint disclosures), water and waste registers, governance documentation (board minutes, committee charters), supply-chain partner identification (top contributors to 75% of purchases / sales by value) — is captured once and presented through two different disclosure structures. The differences are in (a) which datapoints are mandatory (BRSR Core's 9 specific attributes vs ESRS's much wider envelope), (b) the materiality framework applied (BRSR uses SEBI-prescribed attribute list + entity assessment; ESRS uses double materiality — impact OR financial), (c) the assurance scope + level (reasonable for the 9 BRSR Core attributes; limited for the full ESRS statement). Sensible engagement-team sequencing: build the BRSR Core reasonable-assurance evidence pack first (it's the deeper bar on the narrower scope), then extend the evidence universe to cover the broader ESRS scope at limited-assurance depth.
Which regulation is more stringent for an Indian listed entity?
Wrong framing. They measure different things. BRSR Core sets a deeper bar (reasonable assurance) on a narrower scope (9 specific attributes). CSRD sets a wider bar (limited assurance) on a broader scope (12 standards, double materiality, transition plan, value-chain disclosures). For an Indian listed entity in dual scope, the practical effect is two parallel workstreams that share the underlying data infrastructure but produce separate signed deliverables. The Indian deliverable is signed by an ICAI-empanelled partner CA firm under SAE 3000; the EU deliverable is signed by an EU-Audit-Directive-equivalent assurance practitioner. SEBI sets the deadline for the Indian filing (alongside the Annual Report); the EU regime sets a separate deadline for the consolidated sustainability statement aligned with the entity's EU subsidiary or group reporting cycle.
What changed in CSRD scope under Omnibus I (Feb 2026)?
Omnibus I — Directive (EU) 2026/470, published OJEU 26 Feb 2026, in force 18 Mar 2026 — substantially narrowed CSRD scope: the new mandatory thresholds are more than 1,000 employees AND more than €450M net turnover (both limbs must be met; was 250 employees + €50M turnover OR €25M balance sheet OR listed-entity carve-in). The change applies for FYs starting on or after 1 January 2027. Wave 1 entities (already reporting under CSRD for FY 2024) that fall out of scope under the new thresholds receive a transition exemption from FY 2025 + FY 2026 obligations. Third-country undertaking thresholds were also raised to >€450M EU net turnover + EU subsidiary or branch with >€200M net turnover (flat — no separate lower branch threshold). Omnibus I also removed the original reasonable-assurance escalator (CSRD remains at limited assurance indefinitely) and expanded the value-chain cap protecting suppliers with fewer than 1,000 employees.
What is the role of NESRS for an Indian parent group?
NESRS — the European Sustainability Reporting Standards for Non-EU Groups under CSRD Article 40a — is the standard a non-EU parent group uses to report consolidated sustainability information at the EU-operations level when it exceeds the third-country thresholds (>€450M EU net turnover for two consecutive years + EU subsidiary or branch with >€200M net turnover). The European Commission is mandated to adopt NESRS by 30 June 2026. First reporting year for non-EU parents in scope is FY 2028 (reports due 2029). NESRS is expected to be lighter than full ESRS Set 1 — focused on the entity's EU-attributable activities and impacts rather than the entire global group. For Indian listed entities in third-country scope, NESRS produces a separate consolidated EU-operations sustainability report that runs in parallel with the BRSR + BRSR Core filing for the Indian listed entity; the underlying data infrastructure is shared, the disclosure structures + assurance chains are separate.
Can the same Indian CA firm perform both BRSR Core assurance AND advisory on the EU CSRD workstream?
Independence framework applies but the answer is not a blanket no. SAE 3000 (Revised) — ICAI's standard for assurance engagements other than financial-statement audits — requires the assurance practitioner to assess threats to independence and apply safeguards. Advising the same client on CSRD readiness (e.g., gap assessment, data infrastructure design) is typically permissible if the firm separates the advisory team from the assurance team and applies independent partner review. The cleaner pattern in practice: an Indian CA firm performs BRSR Core assurance + the Indian SAE 3410 GHG verification component; a separate EU-Audit-Directive-equivalent assurance provider performs the CSRD limited-assurance engagement. The Indian firm may continue advisory engagements on EU side where permitted. BatchWise coordinates BRSR Core through its partner CA firm network; for the EU side, partners are typically directly contracted by the listed entity.