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ESG vs. CSR in India: Legal Differences, Section 135 Mandates, and Strategic Integration

A definitive legal and operational comparison of Corporate Social Responsibility (CSR) under Section 135 of the Companies Act and Environmental, Social, and Governance (ESG) compliance under SEBI BRSR rules.

Aditi VermaSenior ESG Compliance Analyst
Updated: August 18, 2026
14 min read

Across Indian corporate boardrooms, confusion between Corporate Social Responsibility (CSR) and Environmental, Social, and Governance (ESG) remains widespread. Many executives assume that having a robust CSR committee and donating to local schools or healthcare clinics fulfills their corporate sustainability duties. In reality, Indian corporate law and financial regulators treat CSR and ESG as fundamentally different compliance frameworks. To understand the wider ecosystem, start with our Definitive Guide to ESG in India.

Statutory Distinction Alert

Donating 2% of net profits under Section 135 of the Companies Act does not exempt an enterprise from SEBI BRSR Core assurance or CPCB environmental liabilities. An Indian corporation can be fully CSR-compliant while simultaneously facing punitive regulatory action for unmitigated emissions, water extraction violations, or workplace discrimination.

1. What is CSR under Indian Law? (Section 135 Decoded)

India became the first country in the world to mandate statutory corporate social responsibility through the enactment of Section 135 of the Companies Act, 2013, read with the Companies (Corporate Social Responsibility Policy) Rules, 2014.

  • Statutory Applicability Thresholds: Any company (private or public) registered in India meeting any of the following criteria during the immediately preceding financial year must constitute a CSR Committee: (1) Net worth of ₹500 crore or more; (2) Turnover of ₹1,000 crore or more; or (3) Net profit of ₹5 crore or more.
  • Mandatory Expenditure: Eligible entities must spend at least 2% of the average net profits made during the three immediately preceding financial years on approved activities listed under Schedule VII of the Companies Act.
  • Schedule VII Activities: Eradicating hunger and poverty, promoting education, gender equality, environmental sustainability, conservation of natural resources, rural sports, and contributions to funds like PM CARES or Clean Ganga Fund.
  • Form CSR-2 Filing: Mandatory reporting of CSR activities and unspent amounts via the Ministry of Corporate Affairs (MCA) MCA21 electronic portal.

2. What is ESG under SEBI and Indian Market Regulators?

ESG is not a charitable disbursement; it is a holistic operational framework that quantifies how an enterprise minimizes systemic risk and manages externalities across its entire operating model and supply chain.

  • Environmental (E): Direct operational emissions, energy consumption, renewable electricity adoption, water recycling, and compliance with statutory waste handling rules like CPCB EPR Guidelines.
  • Social (S): Internal labor practices, adherence to the Factories Act 1948, fair wages, occupational health & safety (OHS), POSH Act compliance, and human rights due diligence across vendor networks.
  • Governance (G): Board composition, oversight of Related Party Transactions (RPT), independent audit committee controls, whistleblower mechanisms, and data protection compliance under the DPDP Act 2023.

3. Direct Side-by-Side Comparison: CSR vs. ESG in India

Compliance DimensionCorporate Social Responsibility (CSR)Environmental, Social & Governance (ESG)
Primary RegulatorMinistry of Corporate Affairs (MCA)SEBI, MoEFCC, CPCB, BEE, and RBI
Governing Legal CodeSection 135, Companies Act 2013SEBI LODR Reg 34(2)(f), MCA NGRBC, Environment Protection Act
Corporate ScopeExternal social interventions and philanthropic programsInternal operational processes, asset efficiency & supply chain
Tax TreatmentNOT tax-deductible under Section 37(1) of the Income Tax ActOperational expenses and green Capex qualify for standard business deductions and depreciation
Measurement MetricRupees spent and number of community beneficiariesQuantitative KPIs (tCO₂e GHG emissions, water intensity, LTIFR, gender pay gap)
Assurance MandateBoard approval and statutory audit sign-off in Directors' ReportMandatory 'Reasonable Assurance' for BRSR Core indicators by independent ESG verifiers
Capital ImpactZero direct impact on enterprise cost of capitalDirectly drives credit ratings, green bond issuance pricing, and private equity valuations

4. The Penalties for Non-Compliance Compared

The legal risks associated with non-compliance differ sharply between the two regimes:

  • Penalties under Section 135 (CSR): Under Section 135(7) of the Companies Act, failure to transfer unspent CSR funds to designated government accounts results in a penalty on the company of twice the unspent amount or ₹1 crore (whichever is less), and every officer in default faces a personal penalty of 1/10th of the unspent amount or ₹2 lakhs.
  • Penalties under SEBI BRSR (ESG): Omission or misrepresentation of BRSR disclosures violates Listing Regulations, triggering fines under Section 15HB of the SEBI Act, trading suspensions, loss of institutional shareholder backing, and severe ESG rating provider downgrades. Furthermore, operational environmental breaches trigger closure notices under Section 33A of the Water Act or Section 31A of the Air Act by SPCBs.

5. Strategic Convergence: How to Turn CSR Spend into ESG Assets

Forward-thinking Indian enterprises do not treat CSR and ESG as competing budgets. Instead, they strategically align CSR Schedule VII capital to supercharge their ESG performance metrics without violating MCA rules:

  • Water Neutrality Synergy: Investing CSR capital in watershed development, rainwater percolation ponds, and check-dams in communities surrounding manufacturing facilities qualifies as a valid Schedule VII activity while simultaneously improving the enterprise's water replenishment balance under BRSR Principle 6.
  • Supply Chain Skill Development: Funding vocational training institutes and renewable technician training centers for rural youth strengthens the enterprise's local skilled labor pool while driving Social (S) leadership indicators under NGRBC Principle 3.
  • Renewable Off-Grid Projects: Deploying solar microgrids or rooftop solar systems in off-grid rural schools and primary health centers fulfills CSR rural development mandates while demonstrating climate stewardship under the company's broader sustainability narrative.

Frequently Asked Questions (FAQ)

Can CSR funds be used to pay for a company's internal solar plant or wastewater treatment plant?

Strictly NO. Rule 2(1)(d) of the Companies (CSR Policy) Rules explicitly excludes activities undertaken in pursuance of the normal course of business of the company. Internal operational green Capex cannot be booked as CSR spend, though it directly boosts the enterprise's ESG rating.

Does an unlisted private company with a net profit over ₹5 crore have to report ESG?

While statutory SEBI BRSR filing applies only to listed entities, private companies exceeding ₹5 crore net profit must comply with Section 135 CSR mandates. However, if this private company supplies goods or services to top listed enterprises, it will be required to disclose ESG data under SEBI's BRSR Core Value Chain rules.

Which department should manage ESG vs. CSR inside an Indian corporate?

CSR is typically managed by a dedicated CSR Head or Corporate Communications team reporting to the Board's CSR Committee. ESG, however, is a cross-functional risk and compliance discipline that requires coordination between the CFO (capital and assurance), Chief Sustainability Officer (GHG/energy metrics), Legal Counsel (SEBI/CPCB rules), and Operations/EHS Heads.
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