If you’re a CA student, a newly qualified chartered accountant, or a commerce professional wondering where the next big career opportunity lies, here’s some good news: ESG reporting and assurance is rapidly becoming the next growth area for Indian CAs. While you’ve been mastering balance sheets and GST filings, something significant has changed in the corporate world. Companies can no longer just talk about sustainability—they must prove it with verified data. And that’s where CAs come in.
This guide will walk you through everything you need to know about ESG, why it matters for CAs, and how you can position yourself for this emerging field without getting lost in technical jargon.
What Exactly Is ESG Reporting?
ESG stands for Environmental, Social, and Governance. It’s a framework that measures how responsibly a company operates beyond just making profits.
- Environmental: How does the company impact nature? This includes carbon emissions, water usage, waste management, and energy efficiency
- Social: How does the company treat people? This covers employee welfare, diversity, community impact, and labour practices
- Governance: How is the company run? This includes board diversity, corruption prevention, executive pay, and transparency
ESG reporting is when companies publicly share data on these three areas. Earlier, this was optional and often just glossy brochures. Now, it’s mandatory for many companies—and it must be verified by independent auditors.
Why This Matters for Indian CAs Right Now
India’s regulatory landscape has shifted dramatically. Here’s what changed:
The BRSR Mandate
SEBI introduced the Business Responsibility and Sustainability Report (BRSR) for the top 1,000 listed companies in India. This became mandatory from FY 2022–23.
But it doesn’t stop there. BRSR Core assurance is now mandatory for the top 150 listed companies by market capitalisation from FY 2023–24, and by FY 2026–27, it will apply to all top 1,000 companies. This means these companies must get their ESG data verified by independent auditors—creating massive demand for CAs with ESG expertise.
India’s Climate Goals Add Urgency
India has committed to Net-Zero by 2070, with interim targets including 50% non-fossil power capacity by 2030 and a 45% cut in emissions intensity. Companies are now under pressure to measure and reduce their environmental impact. This creates work for CAs who can help with carbon accounting and sustainability assurance.
Finance Minister’s Direct Call
Finance Minister Nirmala Sitharaman has explicitly urged CAs to develop expertise in ESG, carbon accounting, and CSR auditing. She wants Indian CAs to be on par with international professionals. When the Finance Minister speaks directly to your profession, it’s a signal worth paying attention to.
The Traditional CA Role Is Expanding
For years, CAs have focused on financial audits, tax compliance, and statutory reporting. ESG is not replacing these—it’s adding a new dimension to what CAs do.
Where CAs Fit In
Your existing skills translate perfectly to ESG work:
| Traditional CA Skill | ESG Application |
| Financial data verification | ESG data governance and validation |
| Internal controls audit | ESG process and control assessment |
| Statutory audit experience | ESG assurance and third-party verification |
| Risk management knowledge | Climate risk and ESG risk integration |
| Tax advisory expertise | Carbon tax and green incentive guidance |
CAs are uniquely positioned because they understand data integrity, compliance frameworks, and assurance methodologies. These are exactly what ESG reporting needs.
Real-World Example: How This Works in Practice
Let’s take a concrete example. Imagine you’re a CA Practicing in Mumbai, and a manufacturing client in Pune (let’s call them “ABC Textiles”) comes to you. They’re among the top 150 listed companies and SEBI now requires them to get reasonable assurance on BRSR Core.
ABC Textiles’ situation:
- They’ve been collecting ESG data for two years but it’s scattered across departments
- The factory manager tracks energy usage, HR tracks diversity numbers, and procurement tracks supplier data
- None of this has been verified, and investors are asking for audited ESG disclosures
What you do as their CA:
1. Data Governance: You help them set up a system to collect ESG data consistently—energy bills, water consumption records, employee turnover data, safety incident reports
2. Materiality Assessment: You identify which ESG metrics actually matter for a textile company. For them, it’s water usage, chemical waste, and labour practices—not things like data privacy that matter more for tech companies
3. Testing and Verification: You verify their claims. If they say “we reduced water usage by 20%,” you check the meter readings, utility bills, and production records
4. Assurance Opinion: Once verified, you provide an independent assurance statement that gives investors confidence in their ESG disclosures
5. Advisory: You help them set measurable ESG targets aligned with business goals, not just compliance
This isn’t theoretical—a firm like NS Bhargava & Co in Mumbai has already created a dedicated ESG department with specialized teams for sustainability strategy, reporting, and climate risk assessments. If mid-sized firms are making this move, the opportunity is real.
New Career Paths for CAs in ESG
ESG isn’t just for practicing CAs. Students and salaried professionals have multiple entry points:
Roles You Can Target
- ESG Assurance Specialist: Focus on verifying sustainability disclosures for audit firms
- Carbon Footprint Auditor: Measure and verify company emissions
- Sustainability Reporting Specialist: Help companies prepare BRSR reports
- Integrated Reporting Consultant: Bridge financial and non-financial reporting
- ESG Advisory Manager: Advise companies on ESG strategy and risk management
Salary and Revenue Potential
Annual ESG budgets for companies range from ₹10,000–₹25,000 for smaller engagements, with 11.2% of companies allocating above ₹25,000 for comprehensive ESG assurance. For CA firms, ESG can become a significant revenue stream as more clients need these services.
For MSMEs, while they’re not yet mandated to report, larger companies are asking their suppliers for ESG data. A Pune-based auto component supplier might not need BRSR, but if they supply to a top 100 company, that larger client will demand ESG information from them. This creates indirect demand for CA services in the MSME space too.
How to Get Started: Practical Steps
You don’t need to become an ESG expert overnight. Here’s a realistic roadmap:
1. Start with ICAI Resources
The Institute of Chartered Accountants of India (ICAI) is actively building capacity for this transition:
- ICAI’s Sustainability Reporting Standards Board (SRSB) is developing frameworks for Indian CAs
- ICAI offers a Certificate Course on Sustainability Reporting
- ICAI has created tools like the BRSR Reporting Tool and Carbon Footprint Calculator
2. Learn the Key Frameworks
You don’t need to master everything, but understand the major ones:
| Framework | Purpose | Why It Matters |
| BRSR | SEBI’s Indian sustainability reporting standard | Mandatory for top 1,000 listed companies |
| GRI | Global Reporting Initiative | Widely adopted internationally |
| TCFD | Climate-related financial disclosures | Important for climate risk reporting |
| ISSB/IFRS S1 & S2 | International sustainability standards | Becoming the global baseline |
3. Build Practical Skills
Focus on what CAs actually need to do ESG work:
- Data collection and management: How to gather ESG data systematically
- Understanding materiality: Which ESG metrics matter for which industry
- Basic carbon accounting: How to measure Scope 1, 2, and 3 emissions
- Assurance methodologies: Limited vs. reasonable assurance for ESG
4. Update Your Professional Branding
Once you start learning, let the market know:
- Add ESG certifications to your LinkedIn profile
- Change your headline to show interest in “ESG reporting” or “sustainability assurance”
- Write short posts about what you’re learning in ESG
Common Challenges and How to Address Them
Challenge 1: “ESG Isn’t My Strength”
Most CAs feel this initially. Remember: your foundation is in assurance and data verification. ESG just applies these skills to new types of data. Start small—offer to help one client with their BRSR data collection before taking on full assurance engagements.
Challenge 2: “I Don’t Have Time for Additional Certifications”
You don’t need a second degree. ICAI’s certificate courses are designed for working professionals. Even 10–15 hours of focused learning on BRSR requirements can make you valuable to clients starting their ESG journey.
Challenge 3: “My Clients Aren’t Asking for ESG”
Many clients don’t know they need ESG yet. Be the educator. Send them a brief note about SEBI’s BRSR requirements. Explain how larger companies are asking suppliers for ESG data. Often, clients just need someone to point them in the right direction.
Why MSMEs Matter Too
You might think ESG is only for large listed companies. But MSMEs are getting pulled into the ESG ecosystem through their supply chains. Top 250 listed companies must disclose ESG footprints for their value chain, with mandatory assurance on a “comply-or-explain” basis from FY 2024–25.
What this means for you: An MSME in Pune supplying to a Mumbai-based top 100 company will be asked for ESG data. That MSME will need someone to help them prepare. CAs can serve this growing market where larger consulting firms may find small clients unprofitable.
ICAI’s Vision: CAs as Sustainability Leaders
ICAI sees CAs as critical links between regulators and industry. Through the Sustainability Reporting Standards Board, ICAI is:
- Building standardized ESG assurance practices in India
- Creating sector-specific guidance for MSMEs, manufacturing, and service sectors
- Collaborating with SEBI, MCA, and RBI on ESG standards
The institute envisions CAs not just as compliance checkers but as strategic advisors who help businesses embed sustainability into operations.
The Bottom Line: Why You Should Act Now
ESG reporting is moving from “nice to have” to “must have.” Here’s why the timing matters:
1. Mandatory assurance is already here for top 150 companies and expanding to top 1,000 by FY 2026–27
2. Demand is growing faster than supply of qualified ESG auditors
3. ICAI is actively upskilling CAs—you have institutional support
4. It complements your existing practice, doesn’t replace it
5. Investors increasingly require assured ESG data—fund managers must invest 65% of assets in companies with BRSR and reasonable assurance
If you wait until ESG becomes mainstream, you’ll be competing with everyone. Start now, and you can become one of the go-to CAs in your network for sustainability assurance.
Final Word: This Is Your Opportunity
When you cleared your CA Final, you probably pictured traditional audit and tax work. But the profession is evolving. ESG reporting and assurance isn’t a distraction from your CA career—it’s an expansion of what CAs can do.
You already have the hard skills: data verification, compliance expertise, and assurance methodology. ESG just applies these to environmental and social metrics. Start by understanding BRSR requirements, get familiar with one or two frameworks, and offer to help clients with their ESG journey.
ESG is the next big opportunity for CAs. The question isn’t whether this will grow—it already is. The question is whether you’ll be part of it.
Author Bio
