ESG reporting in India is becoming an increasingly important part of corporate compliance, sustainability strategy, and stakeholder communication. For listed companies, the Business Responsibility and Sustainability Report (BRSR) framework has made environmental, social, and governance disclosures a formal reporting requirement. At the same time, ESG expectations are also increasing across supply chains, investors, customers, and business partners.

For companies preparing their 2026 ESG reporting requirements, the focus is no longer only on collecting sustainability data. Businesses also need reliable processes, documented information, clear responsibilities, and the ability to support reported ESG information with appropriate evidence.

This guide by UA Consultants explains what ESG reporting readiness in India means in 2026, who needs to consider BRSR requirements, what has changed, and how businesses can prepare their ESG data, documentation, and reporting processes.

What is ESG Reporting and Why Does It Matter Now?

ESG reporting is the process of disclosing a company's performance and practices across three key areas: Environmental, Social, and Governance.

This can include information relating to:

1. Greenhouse gas emissions and energy consumption
2. Water use and waste management
3. Employee health, safety, and welfare
4. Diversity and inclusion
5. Human rights and responsible business practices
6. Corporate governance and ethical business conduct
7. Sustainability policies and risk management

In India, ESG disclosures for listed entities are formalised through the Business Responsibility and Sustainability Reporting (BRSR) framework of the Securities and Exchange Board of India (SEBI).

BRSR has been mandatory for the top 1,000 listed entities by market capitalisation under SEBI's framework. SEBI has also introduced BRSR Core, which focuses on selected key ESG performance indicators and progressively expands the requirement for independent assurance.

What Has Changed: The Move Toward BRSR Core and Assurance

SEBI introduced BRSR Core, a focused set of key ESG indicators, along with a phased requirement for independent assurance. This means companies covered by the requirement need stronger ESG data, documentation, and internal processes to support the information they report.

The assurance requirement is being introduced in stages:

1. FY 2023–24: Top 150 listed entities 
2. FY 2024–25: Top 250 listed entities 
3. FY 2025–26: Top 500 listed entities 
4. FY 2026–27: Scheduled to extend to the top 1,000 listed entities 

This phased approach makes ESG reporting readiness in India increasingly important for companies that fall within the BRSR Core framework.

SEBI has also introduced provisions related to value-chain ESG disclosures, increasing the importance of ESG data from relevant suppliers, vendors, and other business partners. As a result, businesses that are not directly required to submit BRSR may still receive ESG data requests from larger corporate customers.

Who Needs to Prepare in 2026?

Businesses should consider strengthening their ESG reporting readiness if they fall into any of these categories:

1. Listed companies covered by BRSR or the phased BRSR Core assurance requirements. 
2. Suppliers and business partners working with large listed companies that may request ESG and sustainability data. 
3. Companies preparing for an IPO that need to address growing ESG expectations from investors and stakeholders. 
4. Businesses seeking institutional investment or finance, where ESG performance may be considered as part of broader due diligence.

What Companies Need to Prepare: A Practical Checklist

Preparing for ESG reporting in India is not a one-week task. Companies need reliable data, clear responsibilities, and proper documentation to make their ESG reporting process more efficient and assurance-ready.

1.Map Your ESG Data Sources

Identify where your ESG data comes from, such as energy bills, HR records, procurement systems, waste records, and safety data. Assign clear ownership for each data source.

2.Align with the BRSR Core Indicators

Review the applicable BRSR Core indicators and ensure your systems can collect accurate and consistent ESG information. Avoid relying on generic sustainability data that does not support the required disclosures.

3.Prepare for Third-Party Assurance

Maintain accurate records, supporting evidence, consistent calculation methods, and clear data trails. Good documentation can make the assurance process more efficient.

4.Review Your Value Chain Exposure

If you work with large listed companies, be prepared for potential ESG data requests from customers, suppliers, or business partners. Understanding your value-chain ESG requirements early can improve business readiness.

5.Build Internal Ownership and Governance

ESG reporting works best when it is not treated as a once-a-year finance department task. Assign clear ownership, involve operations and HR teams, and establish a regular review process so that ESG data is collected and checked throughout the year rather than at the last minute.

Common Challenges Companies Face

1. Fragmented or inconsistent ESG data 
2. Lack of clarity around applicable BRSR Core indicators 
3. Inadequate documentation for ESG data 
4. Difficulty preparing for independent assurance 
5. Treating ESG reporting as a yearly compliance exercise 

Companies that start preparing early can improve ESG data quality, reporting efficiency, and assurance readiness while reducing last-minute compliance challenges.

How UA Consultants Can Help

UA Consultants has supported businesses with environmental and sustainability compliance since 2001. Our ESG consulting services help companies map their ESG data, align with BRSR Core requirements, prepare for third-party assurance, and build sustainable reporting systems that hold up under scrutiny year after year.

Whether you are a listed company facing a new assurance mandate, or a supplier being asked for ESG data for the first time, our team can guide you through the process step by step.

Frequently Asked Questions (FAQs)

1.Which companies are required to file BRSR in India?

BRSR is mandatory for the top 1,000 listed entities by market capitalisation under SEBI's reporting framework. BRSR disclosures are included in the company's annual reporting framework.

2.What is the difference between BRSR and BRSR Core?

BRSR is the broader sustainability reporting framework, while BRSR Core focuses on selected key ESG indicators. BRSR Core assurance requirements are being introduced progressively for larger listed entities.

3.Do unlisted or smaller companies need to worry about ESG reporting?

They may not have the same BRSR filing requirement as covered listed entities. However, companies that work with large listed businesses may receive ESG data requests from customers or business partners, making ESG readiness increasingly relevant.

4.What happens if a company is not ready for BRSR Core assurance?

Companies may face data gaps, documentation issues, and delays during the assurance process. Preparing early helps ensure accurate ESG reporting, proper documentation, and smoother assurance.

Final Thoughts

ESG reporting readiness in India is becoming an important part of corporate compliance and sustainability management. As BRSR Core assurance expands and ESG expectations grow across business relationships, companies should focus on building reliable ESG data and reporting processes rather than waiting until the reporting deadline.

Need help preparing your company for ESG and BRSR compliance? Get in touch with UA Consultants for professional ESG consulting and reporting support.