A decade ago, ESG reporting in India was largely a voluntary gesture confined to a handful of large corporates. Today it is a regulated discipline with prescribed formats, assurance requirements and filing deadlines. For any company operating in or supplying into the Indian market, understanding how ESG reporting works is no longer optional knowledge. This piece explains what ESG reporting means, what an ESG report actually contains, which companies it applies to, and how India’s requirements sit within the global disclosure landscape. Having worked across GRI, SASB and IFRS S1/S2 mandates, I will keep the focus on what matters in practice rather than the theory.
What Is ESG Reporting and What Does It Mean for Indian Companies?
The ESG reporting meaning, at its core, is straightforward: it is the structured disclosure of how a company performs on environmental, social and governance factors that sit outside the traditional financial statements. An environmental, social and governance report communicates a company’s impact on the planet, its treatment of people, and the integrity of how it is governed, using data that investors and regulators can compare across firms.
What separates ESG disclosure from a glossy sustainability brochure is standardisation. A credible ESG report uses defined metrics, consistent reporting boundaries and, increasingly, third-party verification, so that a reader can trust the numbers the same way they trust an audited balance sheet. In India, that shift from narrative to measurable data is precisely what regulators have driven over the past five years.
How Is ESG Reporting Different From Sustainability Reporting?
The terms ESG and sustainability reporting are often used interchangeably, and in the Indian context they have effectively converged. The distinction, where one exists, is one of emphasis. Sustainability reporting grew out of the environmental and social movement and tends to speak to a broad stakeholder audience. ESG reporting frames the same issues through the lens of financial materiality, that is, how environmental and social factors affect enterprise value, which is why it resonates with investors. India’s flagship framework folds both perspectives into a single mandatory filing, so companies here rarely need to choose between them.
What Are the Core Pillars of an ESG Report?
Every ESG report is built on three pillars and understanding what each covers is the first step to producing one.
The strongest reports do not treat these pillars as silos. Governance quality, for instance, shapes how reliably environmental and social data is collected in the first place, which is why assurance providers scrutinise the systems behind the numbers, not just the numbers themselves.
What Are the ESG Reporting Requirements in India?
India’s ESG reporting requirements are anchored by the Business Responsibility and Sustainability Report, or BRSR, which SEBI made mandatory through its circular dated May 10, 2021. The BRSR sits inside the annual report under Regulation 34(2)(f) of the LODR Regulations and is built on the nine principles of the National Guidelines on Responsible Business Conduct, published by the Ministry of Corporate Affairs in 2019. The format runs to around 140 disclosure indicators, split into 98 essential indicators that every reporting entity must complete and 42 leadership indicators that are voluntary.
A subset of these metrics, known as the BRSR Core, carries a mandatory verification requirement that is being phased in across the largest listed entities. SEBI’s circular of March 28, 2025 gave companies the option to obtain either assessment or assurance of the Core, a practical response to the shortage of qualified providers. For the mechanics of the format itself, see our earlier guide on filling the BRSR report. [Blog 3 link]
Beyond SEBI, the Companies Act, 2013 adds its own touchpoints, including the corporate social responsibility obligations under Section 135 and the requirement for the board’s report to address compliance with environmental laws.
Who Does ESG Reporting Apply To in India?
BRSR compliance is mandatory for the top 1,000 listed entities by market capitalisation and has been since FY 2022-23. Value chain ESG disclosure, which extends reporting to significant suppliers and customers, was made voluntary for the top 250 entities from FY 2025-26 before an expected move to mandatory status in the coming years.
Applicability, however, reaches further than the letter of the rule. Unlisted and private companies increasingly face ESG data requests from listed customers building out their value chain disclosures, and from global buyers responding to regulations such as the European Union’s supply chain due diligence directives. In practice, a company well below the SEBI threshold may still need an ESG report to keep a key contract.
Which Global Frameworks Shape ESG Disclosure in India?
Indian ESG reporting does not exist in isolation. The BRSR was designed to align with leading international frameworks, and many Indian companies report against several of them at once to satisfy global investors.
| Framework | Primary focus |
| GRI | Broad stakeholder impact disclosure |
| SASB | Industry-specific financial materiality |
| TCFD | Climate-related financial risk |
| IFRS S1 and S2 (ISSB) | Global baseline for sustainability and climate |
| UN SDGs | Alignment with global development goals |
For most Indian companies, BRSR is the mandatory floor and these frameworks are the voluntary ceiling that signals maturity to international capital. A company that maps its BRSR data to GRI or the ISSB standards makes itself legible to a far wider pool of investors.
Why Does ESG Reporting Matter Beyond Compliance?
Treating ESG reporting purely as a filing obligation misses its value. Reliable ESG disclosure widens access to capital, particularly the fast-growing pool of sustainability-linked debt and equity, and it builds the investor trust that underpins valuation. India has moved from a market where only a small fraction of large companies disclosed sustainability data a decade ago to one where the clear majority of top-listed firms now do so. The companies that build genuine ESG data systems, rather than treating each report as a last-minute scramble, are the ones that convert compliance into a durable competitive advantage.
Frequently Asked Questions
What is the meaning of ESG reporting?
ESG reporting is the structured disclosure of a company’s environmental, social and governance performance using standardised, comparable metrics, presented alongside its financial reporting rather than as a marketing narrative.
Is ESG reporting mandatory in India?
Yes, for the top 1,000 listed entities by market capitalisation, through SEBI’s BRSR framework, and it has been effective since FY 2022-23. Other companies may report voluntarily or under value chain pressure from larger partners.
What is the difference between ESG and sustainability reporting?
The two overlap heavily. Sustainability reporting speaks to a broad stakeholder audience, while ESG reporting emphasises financial materiality for investors. In India, the BRSR combines both perspectives into a single filing.
Which framework is used for ESG reporting in India?
The mandatory framework is SEBI’s Business Responsibility and Sustainability Report (BRSR), built on the MCA’s nine NGRBC principles and aligned with global standards such as GRI and TCFD.
Turning ESG Reporting into an Advantage
ESG reporting in India will only deepen as value chain and assurance requirements expand over the next few years. [K&A contact CTA link] Our sustainability reporting team can help you scope your obligations, build the underlying data systems, and produce disclosures that withstand investor and regulatory scrutiny.
