Environmental, Social and Governance, commonly known as ESG, has moved from being a voluntary sustainability concept to an important business requirement for many Indian companies.

Large listed companies, manufacturers, exporters, suppliers to multinational companies, infrastructure businesses and companies seeking institutional investment are increasingly expected to maintain reliable ESG data.

An ESG audit helps a business understand whether its environmental, employee, social responsibility and governance information is properly recorded, supported by documents and capable of being verified.

For Indian companies, ESG audits have become particularly important because of frameworks such as the Business Responsibility and Sustainability Reporting (BRSR) requirements introduced by SEBI.

SEBI has also introduced the BRSR Core framework, which focuses on selected key ESG indicators and assurance or assessment requirements for applicable listed entities.

However, ESG audits are not useful only for listed companies. Even private companies and MSMEs are beginning to face ESG information requests from customers, banks, investors and large companies in their supply chains.

This guide explains the ESG audit process in India, important documents, major areas to check, common mistakes and best practices companies can follow.

What Is an ESG Audit?

An ESG audit is a structured review of a company's performance, records, policies and supporting evidence related to environmental, social and governance matters.

Unlike a normal financial audit, an ESG audit focuses largely on non-financial performance.

For example, an ESG review may examine how much electricity a factory consumes, how much waste it generates, whether environmental licences are valid, how workplace safety is managed and whether the company has proper governance policies.

The audit may also verify whether the ESG information published by the company can be traced back to reliable records.

A strong ESG audit therefore answers an important question:

Can the company prove the sustainability claims and ESG numbers it reports?

This is becoming increasingly important because investors and customers are looking beyond broad sustainability statements. They expect measurable information supported by evidence.

Why ESG Audits Are Important for Indian Companies

ESG expectations in India have increased significantly during the last few years.

Under SEBI's framework, the top 1,000 listed entities by market capitalization are covered by BRSR reporting requirements. BRSR Core was subsequently introduced to strengthen reliability around selected ESG Key Performance Indicators.

The broader responsible-business approach in India also draws from the National Guidelines on Responsible Business Conduct, which emphasize ethical, transparent and accountable business conduct across environmental, social and governance areas.

Even companies that are not directly required to submit BRSR may still receive ESG questionnaires from large customers.

For example, an automobile company may ask component suppliers for information regarding:

• Electricity consumption
• Renewable energy use
• Greenhouse gas emissions
• Water consumption
• Waste generation
• Employee safety
• Labour practices
• Environmental compliance

This means ESG performance is increasingly becoming part of supplier evaluation and business relationships.

Who Needs an ESG Audit?

An ESG audit can be useful for almost any organization, but it is particularly relevant for companies with significant environmental or social impacts.

This may include:

• Listed companies
• Manufacturing companies
• Exporters
• Chemical and pharmaceutical businesses
• Automotive and engineering companies
• Textile manufacturers
• Infrastructure companies
• Renewable energy businesses
• Mining and metal industries
• Recycling and waste management companies
• Companies supplying large corporations
• Businesses seeking private equity or institutional funding

Small and medium businesses may also conduct ESG assessments voluntarily to improve their internal systems and prepare for future customer requirements.

What Does an ESG Audit Cover?

A practical ESG audit normally examines three major areas.

1. Environmental Audit

The environmental section looks at how the company's operations affect natural resources and the environment.

The auditor may review energy, emissions, water, waste and environmental compliance.

Typical areas include:

Energy Consumption

Electricity purchased from the grid, diesel consumption, LPG, natural gas, renewable electricity and other fuels may be evaluated.

Electricity bills, fuel purchase records and meter readings should match the figures reported by the company.

Greenhouse Gas Emissions

Companies increasingly track greenhouse gas emissions generated from their operations.

Depending on the reporting framework, this may include direct emissions from fuel consumption and indirect emissions from purchased electricity.

Companies with more developed ESG systems may also evaluate selected emissions from their value chain.

Water Consumption

The audit may verify:

• Water withdrawal
• Groundwater consumption
• Municipal water supply
• Recycled water
• Wastewater generation
• Wastewater treatment

Meter readings, tanker bills, groundwater records and treatment plant logs should ideally support reported figures.

Waste Management

Companies should maintain records for hazardous waste, plastic waste, e-waste, used oil, battery waste and other applicable waste streams.

The audit should also check whether waste is being transferred to authorized recyclers or treatment facilities.

2. Social Audit

The social section focuses primarily on employees, workers, occupational safety, diversity, human rights and community relationships.

Important information may include total employees, contract labour, women employees, employee turnover, training hours and workplace incidents.

Health and safety deserves particular attention in manufacturing companies.

Records may include:

• Safety training registers
• PPE distribution records
• Accident registers
• Fire drill records
• Medical examination records
• Safety committee records
• Emergency response procedures

Companies should ensure that social indicators reported publicly can be matched with HR and safety documentation.

3. Governance Audit

Governance relates to how the business is controlled, monitored and managed.

A governance audit may review policies, management responsibilities, ethical practices and compliance mechanisms.

Typical areas include:

• Board structure
• Code of conduct
• Anti-bribery policy
• Whistleblower mechanism
• Conflict-of-interest policy
• Data privacy
• Risk management
• Regulatory compliance
• Grievance mechanisms
• Business ethics

Governance is particularly important because environmental or social commitments are difficult to implement when ownership and responsibility are unclear.

ESG Audit Checklist for Indian Companies

Before starting an ESG audit, companies should organize documents department-wise rather than collecting documents at the last moment.

A basic checklist can include the following.

Company and Corporate Documents

Keep incorporation details, organization charts, operational locations and information on subsidiaries or major facilities ready.

Companies should clearly define which facilities and operations are included in their ESG reporting boundary.

Environmental Approvals

Depending on the industry, important documents can include:

• Consent to Establish
• Consent to Operate
• Environmental Clearance
• Hazardous Waste Authorization
• EPR registrations
• Groundwater permissions
• Fire NOC
• Factory licence
• Waste disposal agreements

The applicability of each approval depends on the nature and location of the business.

Energy Records

Keep electricity bills and fuel consumption records for the full reporting period.

Where renewable power is being claimed, supporting documentation should also be available.

Water Records

Maintain:

• Water bills
• Meter readings
• Groundwater data
• Water tanker bills
• STP records
• ETP operating logs
• Wastewater testing reports

Ideally, the company should be able to reconcile total water input with consumption, recycling and discharge.

Waste Records

Waste records should clearly show how much waste was generated and where it was sent.

Supporting documents may include manifests, recycler invoices, weighbridge slips, certificates and annual returns.

HR Records

Employee numbers should generally reconcile with payroll and HR records.

Useful documents include:

• Employee master
• Attendance records
• Payroll
• Gender data
• Training records
• Employee turnover data
• Employee benefits records

Health and Safety Records

Companies should maintain evidence of safety programmes rather than simply having a written safety policy.

Important evidence may include training records, incident records, audits, emergency drills and corrective-action reports.

Governance Policies

Maintain updated copies of important policies along with evidence of their implementation.

Simply creating an anti-bribery or whistleblower policy is not enough if employees are unaware of it.

Step-by-Step ESG Audit Process

A well-planned ESG audit normally begins several weeks before the final reporting exercise.

Step 1: Define the Reporting Boundary

The company first decides which legal entities, plants, warehouses and offices will be included.

This prevents inconsistencies later.

Step 2: Identify Applicable ESG Indicators

Not every ESG indicator will be equally relevant to every business.

A manufacturing company may focus heavily on energy, emissions, water, waste and safety.

A service company may have a stronger focus on employees, governance, data protection and energy consumption.

Step 3: Collect ESG Data

Data is collected from different departments such as:

• Environment, Health and Safety
• HR
• Finance
• Procurement
• Operations
• Legal
• Administration
• Company Secretariat

A central ESG data sheet can make this process easier.

Step 4: Verify Supporting Evidence

Every major number should ideally have supporting evidence.

For example, electricity consumption should be reconciled with electricity bills.

Water usage should be supported by meter readings or procurement records.

Waste quantities should match disposal records.

Step 5: Identify Data Gaps

Common gaps may include missing monthly records, inconsistent measurement methods or data available for only some plants.

These gaps should be documented rather than estimated without explanation.

Step 6: Check Calculations

ESG reporting often involves calculations rather than simply copying raw data.

Examples include:

Energy intensity = Total energy consumption / selected denominator

Water intensity = Total water consumption / selected denominator

Emission intensity = Total emissions / selected denominator

The calculation methodology should remain consistent.

Step 7: Review Policies and Compliance

The ESG auditor should review whether relevant policies actually exist and whether operating practices match those policies.

Step 8: Prepare the Audit Findings

The final assessment should identify:

• Compliant areas
• Missing documents
• Data inconsistencies
• High-risk issues
• Improvement opportunities
• Recommended corrective actions

Common ESG Audit Challenges

One of the biggest problems companies face is fragmented data.

Electricity data may be with finance, waste records with the EHS department, employee information with HR and governance information with the legal team.

Collecting everything during the final few weeks of reporting creates errors.

Another common challenge is inconsistent units.

For example, one plant may report electricity in kWh while another reports it in MWh. Water may be recorded in litres at one location and kilolitres at another.

These units need to be standardized before consolidation.

Companies also frequently face problems with missing evidence.

A sustainability report may state that 500 tonnes of waste were recycled, but if invoices or recycler records are missing, verification becomes difficult.

Best Practices for ESG Audit Readiness

Companies should treat ESG data with the same discipline applied to financial information.

A few good practices can significantly improve audit readiness.

Maintain ESG records monthly instead of compiling everything at year-end.

Assign responsibility for every ESG KPI to a specific department or employee.

Use a standard data template across all manufacturing locations.

Maintain digital copies of environmental approvals and compliance records.

Conduct quarterly internal ESG reviews.

Keep the calculation methodology documented.

Maintain supporting evidence for every major ESG figure.

Companies should also compare year-on-year changes.

If electricity consumption suddenly increases by 35% while production increases only 5%, management should understand the reason.

Such analysis can help identify both reporting errors and operational inefficiencies.

ESG Audit vs ESG Reporting

ESG reporting and ESG auditing are related, but they are not the same activity.

ESG reporting communicates the company's sustainability performance.

ESG auditing or assessment evaluates whether the information behind those disclosures is complete, consistent and supported.

A professionally designed sustainability report can still contain weak data.

That is why internal verification should take place before public disclosures are finalized.

How an ESG Consultant Can Help

ESG reporting requires coordination across several departments, which can be difficult for companies handling the process for the first time.

An ESG consultant can help develop a structured system instead of simply collecting information at the end of the financial year.

Consulting support may include:

• ESG gap assessment
• ESG audit checklist preparation
• BRSR readiness assessment
• BRSR Core data mapping
• ESG policy preparation
• Environmental compliance review
• Carbon and GHG data assessment
• ESG KPI development
• Sustainability reporting support
• Supplier ESG assessment
• ESG improvement roadmap

For manufacturers, consultants can also help connect ESG reporting with existing environmental compliance records such as CTE, CTO, waste authorizations and pollution-control monitoring.

This makes the reporting process more practical because much of the required environmental information may already exist within different compliance systems.

Benefits of Conducting an ESG Audit

An ESG audit can provide benefits beyond regulatory reporting.

It can help management identify inefficiencies in energy, water and waste management.

It can also improve confidence in sustainability information shared with customers, lenders and investors.

Other potential benefits include improved documentation, better supply-chain readiness, stronger environmental compliance and clearer responsibility across departments.

Most importantly, ESG auditing helps companies move from broad sustainability commitments to measurable performance.

Conclusion

ESG expectations are becoming an important part of doing business in India.

For listed companies, SEBI's BRSR and BRSR Core frameworks have created more structured sustainability disclosure expectations, while private companies are increasingly receiving similar information requests from customers, investors and supply-chain partners.

Companies should therefore avoid treating ESG reporting as a once-a-year documentation exercise.

A stronger approach is to create a monthly ESG data system, assign clear responsibilities, maintain supporting evidence and conduct internal reviews before final reporting.

Green Permits supports Indian businesses with ESG audits, BRSR readiness, ESG reporting, environmental compliance assessment, sustainability strategy, carbon accounting and ESG advisory services.

For professional support with ESG compliance and sustainability reporting:

Website: https://www.greenpermits.in

Phone: +91 78350 06182

Email: wecare@greenpermits.in