ESG Debt Securities and Sustainable Finance Regulations — ESG BROADCAST shares key takeaways.
The Securities and Exchange Board of India (SEBI) has issued revised norms governing the appointment of independent third-party reviewers or certifiers for green debt securities. The circular, released on February 27, 2026, updates provisions under Chapter IX of the Master Circular governing the issue and listing of non-convertible securities and related debt instruments. The regulatory update aims to align the review framework for green debt securities with broader ESG debt securities rules introduced in recent years.
The current regulatory framework traces back to February 2023, when SEBI strengthened disclosure requirements for issuers proposing to list green debt securities. These rules mandated both initial and continuous disclosures to ensure transparency regarding the environmental use of proceeds. The provisions came into effect on April 1, 2023, and were subsequently incorporated into the Non-Convertible Securities (NCS) Master Circular issued in October 2025.
In December 2024, SEBI expanded the scope of sustainable finance instruments within India’s securities market. The regulator introduced the broader classification of ESG debt securities, which now includes social bonds, sustainability bonds, and sustainability-linked bonds alongside green debt securities. This move reflected growing investor demand for labeled sustainable finance instruments and brought India closer to global capital market practices.
Following this expansion, SEBI released an operational framework in June 2025 for ESG debt securities other than green debt securities. The framework introduced disclosure obligations and defined the role of independent reviewers to verify sustainability claims. The latest circular modifies the rules for green debt securities so that the appointment and functioning of third-party reviewers match the standards applied to other ESG debt securities instruments.
Under the revised norms, issuers must appoint an independent third-party reviewer or certifier to verify that the issuance of green debt securities aligns with definitions under the SEBI (Issue and Listing of Non-Convertible Securities) Regulations, 2021. The reviewer must evaluate project selection processes, environmental eligibility categories, and financing frameworks used by issuers.
The regulator has also introduced strict independence requirements. The reviewer must remain independent from the issuer’s directors, senior management, and key managerial personnel. Compensation structures must prevent conflicts of interest, and reviewers must demonstrate expertise in assessing ESG debt securities frameworks.
SEBI further clarified that the scope of the review must appear in the offer document submitted during issuance. The review may take several internationally recognized forms, including a Second Party Opinion, independent verification, certification, or ESG scoring and rating. These approaches align with guidelines issued by the International Capital Market Association for external reviews in sustainable finance markets.
The circular has come into effect immediately and applies to issuers listing or proposing to list green debt securities in Indian capital markets. Market participants, including merchant bankers, stock exchanges, credit rating agencies, and ESG rating providers, must incorporate these requirements when supporting issuances.
Strategic significance lies in India’s sustainable finance regulations. By aligning the review framework across all ESG debt securities, SEBI reduces regulatory fragmentation and enhances investor confidence in labeled green bonds. The strengthened third-party verification process also mitigates greenwashing risks and improves transparency in India’s rapidly growing sustainable bond market.
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