ESG ratings are independent assessments of a company's Environmental, Social, and Governance performance, assigned by specialized agencies like MSCI, Sustainalytics, CRISIL, CDP, and S&P Global. In India, SEBI approved CRISIL as the first accredited ESG Rating Provider in 2024. With over $30 trillion in global assets now screened through ESG criteria, these ratings directly influence investor decisions, lending terms, and supply chain partnerships for Indian companies.
If you are a listed company in India, chances are you have already been rated - or will be soon - by one or more ESG rating agencies, whether you asked for it or not. Most global agencies rate companies based on publicly available data, and the results shape how investors, lenders, and procurement teams evaluate your business.
The challenge is that ESG ratings are not standardized. Different agencies use different methodologies, weight factors differently, and can arrive at very different conclusions about the same company. Understanding how each agency works - and what you can do to ensure your score reflects reality - is critical for any Indian company navigating the ESG landscape.
This guide covers the major ESG rating agencies operating in India, how their methodologies differ, and practical steps to improve your score.
What Are ESG Ratings?
An ESG rating (sometimes called an ESG score) is an evaluation of a company's performance and risk exposure across three pillars:
- Environmental (E): Carbon emissions, energy use, waste management, water stewardship, biodiversity impact, and climate risk exposure. This includes Scope 1, 2, and 3 emissions.
- Social (S): Labor practices, employee health and safety, diversity and inclusion, community engagement, human rights in supply chains, and data privacy.
- Governance (G): Board composition and independence, executive compensation, anti-corruption policies, shareholder rights, audit quality, and business ethics.
Rating agencies collect data from company disclosures (annual reports, BRSR filings, sustainability reports), government databases, news sources, and sometimes direct company engagement. They then apply proprietary models to produce a score or rating that benchmarks the company against industry peers.
ESG ratings measure how well a company manages ESG risks and opportunities - not just whether it discloses information. A company with excellent disclosures but poor environmental performance will still receive a low Environmental score. Conversely, strong performance with weak disclosure can also drag down ratings because agencies cannot verify what is not reported.
Why ESG Ratings Matter for Indian Companies
ESG ratings have moved from a niche concern to a mainstream business factor for Indian companies. Here is why they matter:
- Investor screening: Global institutional investors managing over $30 trillion in assets use ESG ratings to screen investments. A poor ESG score can exclude your company from major indices and funds, directly affecting your stock price and access to capital.
- Cost of capital: Banks and financial institutions increasingly factor ESG scores into lending decisions. Companies with higher ESG ratings often access capital at lower interest rates through sustainability-linked loans and green bonds.
- Supply chain requirements: Multinational corporations are evaluating suppliers on ESG criteria. An Indian manufacturer supplying to European or North American companies may need to demonstrate strong ESG ratings to retain contracts.
- Regulatory alignment: SEBI's BRSR mandate for the top 1,000 listed companies has created a baseline of ESG data that rating agencies now use as a primary input for Indian company assessments.
- Competitive differentiation: In sectors like IT services, pharmaceuticals, and automotive components, strong ESG ratings help Indian companies differentiate against global competitors when bidding for contracts.
Major ESG Rating Agencies
Five agencies dominate ESG ratings for Indian companies. Each uses a distinct methodology, scale, and data approach. Understanding these differences is essential because the same company can receive very different ratings from different agencies.
| Agency | Coverage | Rating Scale | Methodology Focus | India Relevance |
|---|---|---|---|---|
| MSCI | 8,500+ companies globally | AAA to CCC (7 levels) | Industry-specific key issues; risk exposure vs. management | Rates major Indian listed companies; widely used by global investors |
| Sustainalytics | 16,000+ companies globally | 0-100 risk score (lower is better) | ESG risk rating - measures unmanaged ESG risk | Broad Indian coverage; used by Morningstar fund ratings |
| CRISIL | 586+ Indian companies | 1-100 score (higher is better) | India-focused; aligned with BRSR and SEBI framework | SEBI-approved ERP (2024); deepest India-specific coverage |
| CDP | 23,000+ companies globally | A to D- (8 levels) | Climate, water, and forests disclosure quality | 500+ Indian companies disclose; strong on environmental pillar |
| S&P Global | 10,000+ companies globally | 0-100 CSA score | Corporate Sustainability Assessment (CSA); questionnaire-based | Powers Dow Jones Sustainability Index; covers top Indian firms |
A company rated "AA" by MSCI might simultaneously carry a "High Risk" rating from Sustainalytics. This is not a contradiction - it reflects different methodological lenses. MSCI focuses on how well a company manages material ESG issues relative to peers, while Sustainalytics measures the absolute level of unmanaged ESG risk.
CRISIL - India's SEBI-Approved ESG Rating Provider
In 2024, SEBI approved CRISIL as India's first accredited ESG Rating Provider (ERP) under its regulatory framework for ESG rating providers. This marked a significant milestone in formalizing ESG assessments within the Indian capital market.
CRISIL's ESG methodology is specifically designed for the Indian context:
- Data sources: Primarily uses BRSR disclosures, annual reports, company websites, and regulatory filings. Unlike global agencies that rely heavily on AI-scraped data, CRISIL incorporates direct engagement with Indian companies.
- Scoring model: Evaluates companies on a 1-100 scale across E, S, and G pillars, with industry-specific weightages. The methodology accounts for Indian regulatory requirements, market conditions, and sector-specific material issues.
- BRSR alignment: CRISIL's framework directly maps to BRSR disclosure parameters, making it easier for companies already filing BRSR reports to understand how their disclosures translate into ESG scores.
- Coverage: Rates 586+ Indian listed companies, with plans to expand as SEBI's ESG ecosystem matures.
"ESG Rating Providers play a crucial role in the ESG ecosystem by providing ESG ratings that are used by investors for making investment decisions. It is important that such ratings are reliable, transparent, and free from conflicts of interest." - Securities and Exchange Board of India (SEBI), Consultation Paper on ESG Rating Providers
For Indian companies, having a SEBI-regulated ESG rating from CRISIL carries particular weight with domestic institutional investors and mutual funds that are increasingly integrating ESG criteria into their investment mandates.
How ESG Scores Are Calculated
While each agency uses proprietary models, the general framework follows a similar structure. Understanding this helps companies focus their efforts on what actually moves the needle.
Environmental Pillar (typically 25-45% weight)
The Environmental pillar evaluates a company's impact on and management of natural resources and climate risk. Key metrics include:
- Carbon emissions intensity: Scope 1, 2, and 3 greenhouse gas emissions relative to revenue or production output
- Energy management: Energy consumption, renewable energy share, and efficiency improvements
- Water and waste: Water withdrawal, recycling rates, hazardous waste management
- Climate targets: Whether the company has set science-based targets or net-zero commitments
- Environmental compliance: Track record of regulatory violations, fines, and remediation
For carbon-intensive sectors like steel, cement, and power generation, the Environmental pillar often carries the highest weight - up to 45% of the total score.
Social Pillar (typically 20-35% weight)
- Workforce practices: Employee turnover, training hours, health and safety incident rates
- Diversity and inclusion: Gender diversity at board and management levels, pay equity
- Human rights: Supply chain labor standards, child labor and forced labor policies
- Community impact: CSR spending effectiveness, stakeholder engagement, local community relations
- Data privacy: Data protection policies, cybersecurity practices, breach history
Governance Pillar (typically 20-35% weight)
- Board structure: Independence, diversity, separation of Chair and CEO roles
- Executive compensation: Alignment with long-term performance, ESG-linked incentives
- Audit and risk: Audit committee independence, internal controls, risk management framework
- Ethics and anti-corruption: Anti-bribery policies, whistleblower mechanisms, related-party transactions
- Shareholder rights: Voting structures, minority shareholder protections
Weightages vary significantly by industry. A technology company might see Governance weighted at 35% and Environmental at 25%, while a mining company might see Environmental at 45% and Governance at 20%. This is why a materiality assessment is critical - it tells you which ESG factors are most material to your specific industry, and therefore most heavily weighted in your rating.
How to Improve Your ESG Score
Improving your ESG score is not about gaming the system. Agencies are sophisticated enough to see through superficial measures. The companies that achieve the best ratings are those that genuinely integrate ESG into strategy and operations. Here are actionable steps:
1. Complete comprehensive BRSR disclosures
Rating agencies cannot score what they cannot see. Many Indian companies lose points simply because they leave BRSR fields blank or provide incomplete data. Review your BRSR filing and ensure every applicable metric is reported with supporting data.
2. Measure and reduce emissions with targets
Having emissions data is table stakes. What moves your score is demonstrating year-over-year reduction against specific targets. Set science-based targets for Scope 1 and 2 emissions, with a roadmap for addressing Scope 3.
3. Conduct a materiality assessment
A formal materiality assessment identifies which ESG issues matter most to your business and stakeholders. This allows you to focus resources on the factors that carry the highest weight in your industry's ESG rating methodology.
4. Strengthen governance structures
Board diversity, independent director representation, separation of Chair and CEO roles, ESG committee establishment, and linking executive compensation to ESG targets are all governance factors that agencies evaluate closely.
5. Engage proactively with rating agencies
Most agencies have processes for companies to review and provide feedback on their ratings. MSCI allows companies to review draft assessments. S&P Global's CSA is questionnaire-based - actively participating yields better results than being rated passively on public data alone.
6. Obtain third-party assurance
Having your sustainability data independently verified by a third-party auditor significantly boosts credibility. Agencies give more weight to assured data. Start with key metrics like GHG emissions and energy consumption.
7. Publish a standalone sustainability report
Beyond BRSR, a comprehensive sustainability report following GRI or ISSB standards provides additional data points that agencies use. It also demonstrates commitment beyond minimum regulatory compliance.
ESG Ratings vs BRSR
Indian companies often conflate ESG ratings with BRSR compliance. While they are connected, they serve fundamentally different purposes:
| Dimension | BRSR | ESG Rating |
|---|---|---|
| Purpose | Standardized disclosure - reporting what you do | Independent evaluation - how well you perform |
| Who requires it | SEBI mandate for top 1,000 listed companies | Voluntary, but increasingly expected by investors |
| Who produces it | The company itself | Independent rating agencies (MSCI, CRISIL, etc.) |
| Framework | Fixed template with 9 principles, specific data points | Proprietary methodology varying by agency |
| Output | Standardized report filed with stock exchange | Score or rating benchmarked against peers |
| Relationship | Provides data inputs for ESG ratings | Uses BRSR data as one of many sources |
The key takeaway: strong BRSR reporting is necessary but not sufficient for a good ESG rating. BRSR tells the rating agency what your numbers are. The ESG rating evaluates how good those numbers are relative to your industry, whether your trajectory is improving, and how well your management systems address material risks.
For a deeper comparison of ESG frameworks and their relationship with CSR obligations, see our guide on ESG vs CSR. You can also explore ESG-related terms in our sustainability glossary.
Frequently Asked Questions
An ESG score is a numerical or letter-based rating that measures a company's performance across Environmental, Social, and Governance factors. It is assigned by specialized rating agencies like MSCI, Sustainalytics, CRISIL, CDP, or S&P Global. Higher scores indicate better management of ESG risks and opportunities. Investors use these scores to screen investments, while companies use them to benchmark their sustainability performance against peers.
SEBI approved CRISIL as India's first accredited ESG Rating Provider (ERP) in 2024 under its regulatory framework for ESG rating providers. CRISIL evaluates Indian listed companies on environmental, social, and governance parameters using a methodology tailored to the Indian regulatory and market context, including alignment with BRSR disclosures.
Indian companies can improve their ESG score by completing comprehensive BRSR disclosures, reducing Scope 1 and Scope 2 emissions with measurable targets, conducting a materiality assessment to identify key ESG issues, strengthening board diversity and governance policies, implementing robust data collection systems for ESG metrics, engaging with rating agencies proactively to ensure accurate data representation, and obtaining third-party assurance on sustainability data.
BRSR (Business Responsibility and Sustainability Reporting) is a mandatory disclosure framework prescribed by SEBI for the top 1,000 listed companies in India. It requires companies to report specific ESG data points. An ESG score, on the other hand, is an independent assessment by a rating agency that evaluates a company's overall ESG performance - often using BRSR data as one of many inputs. BRSR is about disclosure; ESG ratings are about evaluation and benchmarking.
Need help improving your ESG rating?
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