# When does BRSR Core value chain assessment become mandatory, and what does it mean for suppliers?

Canonical: https://senseible.earth/answers/brsr-core-value-chain-assurance-timeline

Under SEBI's circular of 28 March 2025, it is not mandatory. Value chain disclosures are voluntary for the top 250 listed companies from FY 2025-26, and assessment or assurance of them is voluntary from FY 2026-27. For suppliers, requests can still come, through customers that choose to report or through contract terms.

## How the timeline has changed

- July 2023: SEBI's BRSR Core circular asked the top 250 listed companies for value chain disclosures on a comply or explain basis from FY 2024-25, with limited assurance from FY 2025-26.
- March 2025: SEBI made value chain disclosures voluntary for the top 250 from FY 2025-26, and made assessment or assurance of them voluntary from FY 2026-27.
- The same circular allows 'assessment' as an alternative to 'assurance' for BRSR Core, and narrows the value chain to partners that each make up 2 percent or more of purchases or sales, and lets the company limit disclosure to partners covering 75 percent of purchases or sales.

## What could make it mandatory later

Only a further SEBI circular. SEBI has revised these dates more than once, so treat any date as provisional until a new circular says otherwise. Watch for changes in the scope of companies covered, the 2 percent test, and whether assurance becomes required.

## What this means for a supplier now

- A customer that reports voluntarily will send a data request, usually in the months after the financial year closes, since BRSR is filed with the annual report.
- If the customer opts for assessment or assurance, the provider may sample your bills and invoices, not just your totals.
- A supply contract or supplier code can make data sharing a condition even when SEBI does not.
- Using April to March figures, the same factors each year and documents for every line keeps you ready either way.

## What Senseible does here

Senseible keeps your Scope 1 and 2 records for the financial year with each line tied to its bill or invoice, so you can send totals to a customer and show the documents if an assessor asks.

- [BRSR value chain data request for MSME suppliers](https://senseible.earth/answers/brsr-value-chain-data-request-msme-supplier)
- [BRSR Core: assurance or assessment](https://senseible.earth/answers/brsr-core-assurance-or-assessment-which)
- [BRSR Core's nine attributes](https://senseible.earth/answers/brsr-core-nine-attributes-explained)
- [BRSR requirements in India](https://senseible.earth/climate-intelligence/brsr-reporting-requirements-india)

Sources: [SEBI circular on assurance or assessment of ESG disclosures for value chain, 28 March 2025](https://www.sebi.gov.in/legal/circulars/mar-2025/measures-to-facilitate-ease-of-doing-business-with-respect-to-framework-for-assurance-or-assessment-esg-disclosures-for-value-chain-and-introduction-of-voluntary-disclosure-on-green-credits_93102.html), [SEBI circular on BRSR Core and value chain disclosures, 12 July 2023](https://www.sebi.gov.in/sebi_data/attachdocs/jul-2023/1689087475880.pdf)

Last reviewed 2026-10-18. Checked 18 October 2026: the SEBI circular of 28 March 2025 is the current rule; no later SEBI circular changing value chain timelines was found. Recheck sebi.gov.in before each BRSR season.