ESG & Sustainability: Building Capability That Is Becoming Mandatory, Not Optional

Business Responsibility and Sustainability Reporting (BRSR) is the ESG disclosure framework introduced by SEBI for listed companies in India. The top 1000 listed companies by market capitalization must file BRSR as part of their annual report. BRSR Core, introduced more recently, establishes nine specific attributes that must be externally assured, with implementation phased by company size over FY 2023-24 to FY 2026-27. The framework is significantly more demanding than earlier business responsibility reports, requiring detailed disclosures across environmental, social, and governance dimensions. Organizations subject to BRSR need systematic data collection, defensible measurement methodology, and governance structures that support the disclosure requirements.

BRSR Core is a subset of BRSR that specifies nine attributes requiring reasonable assurance by an independent assurance provider. The attributes include greenhouse gas emissions, water consumption, waste management, and several social dimensions. Assurance means that an independent party examines the disclosures, evaluates them against the measurement methodology, tests supporting evidence, and provides an opinion on whether they are fairly stated. This is similar to financial statement audit but applied to ESG data. Assurance readiness requires organizations to have data quality, documentation, and measurement methodology that would support independent verification, which is significantly more demanding than producing unassured disclosures.

Scope 1 emissions are direct greenhouse gas emissions from sources owned or controlled by the organization, such as fuel combustion at facilities and emissions from company vehicles. Scope 2 emissions are indirect emissions from purchased electricity, heat, or steam consumed by the organization. Scope 3 emissions are all other indirect emissions in the value chain, including emissions from purchased goods and services, business travel, employee commuting, use of sold products, and end-of-life treatment. Scope 3 emissions are typically the largest category for most organizations but also the most difficult to measure because they require data from supply chain and customer activities. Organizations new to emissions measurement typically start with Scope 1 and 2, then develop Scope 3 capability over time as methodology and data become available.

Climate risk assessment identifies physical risks (from acute and chronic climate impacts) and transition risks (from policy, technology, market, and reputational changes related to climate). Assessment typically involves identifying the relevant risks for the specific business and geography, estimating the timing and magnitude of potential impacts, evaluating the organization's exposure and vulnerability, and planning responses that reduce risk or build resilience. The methodology varies by organization and purpose, with banks facing specific requirements under RBI guidelines and other organizations facing requirements under TCFD, CSRD, or other frameworks. Effective climate risk assessment produces actionable understanding rather than just disclosure, with implications for business decisions including capital allocation, insurance, and strategic planning.

Net-zero commitments involve pledges to reduce greenhouse gas emissions to levels that can be balanced by carbon removal, typically by a specified date such as 2050. Making a credible net-zero commitment requires understanding current emissions across all scopes, identifying reduction pathways aligned with climate science, committing to interim targets that demonstrate near-term progress, and implementing programs that actually produce reductions rather than just commitments. Organizations should not make net-zero commitments without the underlying analysis and capability because commitments that are not supported by credible implementation create reputational and legal risk. Net-zero planning should be treated as a strategic initiative with the governance, investment, and attention that significant commitments deserve.

ESG increasingly affects access to capital through multiple mechanisms. Institutional investors apply ESG criteria in their investment decisions, affecting cost of equity for companies with weaker ESG profiles. Banks consider ESG factors in lending decisions, with pricing and access affected for sectors and companies with higher ESG risk. Green bond and sustainability-linked financing require specific ESG characteristics or commitments. Regulatory frameworks including EU taxonomy create specific financing implications for activities that qualify as sustainable. The cumulative effect is that ESG performance affects cost and availability of capital in ways that were not previously true. Organizations that have not addressed ESG often find that financing options have narrowed in ways they did not anticipate.

Building effective ESG capability is a multi-year program. Initial assessment and strategy work can be completed in 3 to 6 months. Data infrastructure and measurement capability typically takes 12 to 24 months to build to a level that supports reliable disclosure. Assurance readiness adds additional time for methodology refinement and evidence development. Sustained capability that continues improving requires ongoing investment rather than project completion. Organizations that attempt to compress ESG capability building into short timeframes often produce capability that satisfies immediate needs without establishing the foundation for continuing requirements. Organizations that start earlier and build systematically produce better outcomes than organizations that wait until pressure forces action.