Carbon Accounting in India: BRSR, CCTS and Scope Emissions Guide

Introduction: Carbon Accounting in India's 2026 Regulatory Landscape

India's approach to carbon management has undergone a profound transformation. As the world's fifth-largest economy and third-largest greenhouse gas emitter, India faces increasing pressure to balance rapid industrial growth with climate commitments. In 2026, the carbon accounting landscape in India is shaped by two primary regulatory frameworks: the Business Responsibility and Sustainability Reporting (BRSR) standard and the Carbon Credits Trading Scheme (CCTS).

For Indian businesses - whether in cement manufacturing, IT services, or heavy chemicals - understanding what is carbon accounting is no longer optional. It's a strategic imperative. Companies across the country are grappling with new reporting requirements, investor expectations, and the complex challenge of measuring emissions across their value chains.

This guide walks you through India's evolving carbon accounting requirements, provides practical guidance on scope emissions, and offers a roadmap for implementation.

India's Carbon Regulations: BRSR and CCTS Explained

The BRSR Framework and Its Evolution

The Business Responsibility and Sustainability Reporting (BRSR) standard, introduced in 2021 and made mandatory for the top 1,000 listed companies by market capitalization from FY 2022-23, represents India's most comprehensive sustainability disclosure framework. BRSR has become the gold standard for ESG reporting in India, and compliance is no longer negotiable for large enterprises.

BRSR Nine Pillars and Emissions Disclosure

What is BRSR Reporting? covers nine ESG pillars, with environmental performance - particularly greenhouse gas emissions - forming a critical component. BRSR requires organizations to disclose:

• Scope 1 emissions: Direct emissions from owned or controlled sources
• Scope 2 emissions: Indirect emissions from purchased energy
• Scope 3 emissions: Value chain emissions (optional but increasingly expected)
• Energy consumption: Renewable and non-renewable breakdowns
• Resource efficiency: Water, waste, and material intensity metrics

BRSR Impact on Carbon-Intensive Industries

For India's cement sector - a notoriously carbon-intensive industry with emissions equivalent to 5% of global CO₂ - BRSR compliance has driven significant investment in clinker efficiency and alternative fuels. Leading manufacturers now report Scope 1 and 2 emissions systematically using BRSR templates.

The Carbon Credits Trading Scheme (CCTS)

How CCTS Operates in India

Launched as a market-based mechanism to incentivize emissions reductions, the CCTS allows entities to buy and sell carbon credits corresponding to verified emissions reductions. How CCTS Works in India provides deeper context, but the essentials are straightforward: entities exceeding their emissions limits can purchase credits; those achieving reductions can sell them.

Financial Incentives and Business Case

The CCTS creates direct financial incentives for accurate carbon accounting. An Indian IT services firm with operations across 50 countries might discover that modest energy efficiency upgrades in its Mumbai data center generate tradeable credits - creating a revenue stream that improves the business case for decarbonization.

CCTS is mandatory for entities covered under India's energy efficiency regulations (Perform, Achieve and Trade, or PAT scheme) and increasingly relevant for larger companies monitoring their strategic exposure to carbon pricing.

Scope 1, 2, and 3 Emissions for Indian Businesses

Understanding scope emissions is foundational to carbon accounting in India. Each scope requires different methodologies, data sources, and calculation approaches.

Scope 1: Direct Emissions from Operations

Sources and Calculation

Scope 1 emissions stem from sources you own or operate. For an Indian cement manufacturer, this includes:

• Kiln fuel combustion: Coal, petcoke, or alternative fuels burned in production
• Process emissions: CO₂ released during limestone calcination
• Fugitive emissions: Dust and leaks from equipment

Practical Calculation Example

Scope 1 calculation is relatively straightforward: multiply fuel consumption (tonnes or GJ) by relevant emission factors. A typical Indian cement plant burning 3 million tonnes of coal annually at an emission factor of 0.0941 tonnes CO₂ per kg of coal generates approximately 900,000 tonnes of Scope 1 CO₂ annually.

Scope 2: Indirect Emissions from Energy

India's Grid Emission Factor and Its Significance

Scope 2 emissions reflect the carbon intensity of purchased electricity. This is where India's grid emission factor (0.820 kg CO₂e/kWh) becomes critical.

India's electricity grid, dominated by coal (~45%), is significantly more carbon-intensive than grids in Western Europe (~0.25 kg CO₂e/kWh) or hydropower-rich nations. An Indian pharmaceutical manufacturer consuming 10 million kWh annually generates approximately 8,200 tonnes of Scope 2 emissions - a figure that would be 2,500 tonnes in a lower-carbon grid.

Challenges and Opportunities in High-Carbon Grids

This creates both challenge and opportunity:

Challenge: High baseline emissions make carbon reduction economics tougher.

Opportunity: Transitioning to renewable energy (solar, wind) offers exceptional carbon savings. A 5 MW rooftop solar installation serving an Indian manufacturing facility can eliminate ~8,000 tonnes of annual Scope 2 emissions, particularly valuable under BRSR and CCTS frameworks.

Importance of Updated Emission Factors

The 0.820 kg CO₂e/kWh factor is published annually by India's Ministry of Power and should be used for all FY calculations. Outdated or region-specific factors understate actual emissions and create compliance risk.

Scope 3: Value Chain Emissions

Overview and Significance

Scope 1 2 3 Emissions for Indian Businesses offers detailed guidance, but Scope 3 deserves particular emphasis in India's context.

Scope 3 Dominance in Global Supply Chains

For Indian manufacturers with global supply chains, Scope 3 can exceed Scope 1 and 2 combined. An Indian apparel exporter shipping finished goods to Europe via sea freight, sourcing cotton from multiple suppliers, and paying third-party logistics providers may find that:

• Purchased goods and services: 45% of total emissions
• Downstream transportation and distribution: 30%
• Capital goods: 15%
• Scope 1 and 2: 10%

Strategic Importance Beyond Mandatory Disclosure

BRSR doesn't mandate Scope 3 disclosure, but investor pressure and CSRD alignment make it strategically important. Forward-thinking Indian companies are beginning Scope 3 assessments to identify high-impact reduction opportunities and future-proof their sustainability narratives.

How to Start Carbon Accounting in India: Step-by-Step

Step 1: Regulatory Assessment

Determine which frameworks apply to your organization:

• Listed on NSE/BSE: BRSR is mandatory. Begin with BRSR scope 1 and 2 calculations.
• Covered under PAT scheme: Energy audits and CCTS compliance are required.
• Supply chain to multinational: CSRD or similar upstream requirements may force Scope 3 disclosure.
• Seeking sustainability financing: Banks increasingly require BRSR alignment or equivalent climate disclosure.

Step 2: Establish Scope and Boundaries

Define your organizational boundaries (equity consolidation vs. financial control) and operational boundaries (which facilities, processes, and business units to include). Indian conglomerates often struggle here - a diversified manufacturer might include cement plants, power generation, chemical production, and real estate, each with different emission profiles.

Document your boundary assumptions in writing. This becomes critical during third-party assurance and regulatory queries.

Step 3: Data Collection Infrastructure

Build systems to capture:

• Energy bills: Electricity, coal, natural gas, diesel consumption
• Transportation records: Fleet mileage, third-party logistics invoices
• Process data: Production volumes, material inputs, waste outputs
• Supply chain data: Supplier emissions where available

Many Indian companies still rely on spreadsheets and manual invoicing. Consider implementing cloud-based carbon accounting platforms - solutions like Greenio streamline BRSR and CCTS compliance by automating data aggregation, calculations, and assurance-ready reporting.

Step 4: Select Appropriate Emission Factors

Use India-specific factors where available:

• Electricity: 0.820 kg CO₂e/kWh (national grid)
• Coal: 0.0941 kg CO₂/kg
• Natural gas: 2.04 kg CO₂/cubic meter
• Petrol/diesel: ~2.31 and 2.68 kg CO₂/liter respectively

The Ministry of Power updates grid factors annually. Using outdated factors creates audit risk and misstates emissions trends.

Step 5: Calculate and Document

Apply the GHG Protocol Corporate Standard methodology:

Scope 1 (Direct) = Fuel consumption × Emission factor

Scope 2 (Indirect) = Electricity consumption × Grid emission factor

Scope 3 (Optional) = Category-specific calculations (purchased goods, transportation, waste, etc.)

Document all assumptions, data sources, and calculation methodologies in a carbon accounting manual. This artifact protects against regulator questions and supports future assurance.

Step 6: Prepare BRSR-Aligned Disclosures

Map your calculated emissions into BRSR's standard reporting templates:

• Total Scope 1 and 2 emissions (tonnes CO₂e)
• Emissions intensity (per unit revenue, production, or headcount)
• Year-over-year trends
• Reduction targets (if applicable)

BRSR requires signed management assertions, so ensure senior leadership reviews and approves reported figures.

Practical Examples: Carbon Accounting Across Indian Sectors

Cement Manufacturing

Emissions Profile and CCTS Opportunity

An Indian cement manufacturer with three facilities (North, South, West) producing 5 million tonnes annually:

• Scope 1: ~2.5 million tonnes (kiln fuel, process emissions)
• Scope 2: ~150,000 tonnes (grid electricity for grinding, packing, transport)
• BRSR reporting: Emissions intensity = 0.54 tonnes CO₂e per tonne cement (typical for India)
• CCTS opportunity: Switching 15% of fuel to alternative sources (waste-derived fuels) could reduce Scope 1 by 375,000 tonnes - creating tradeable credits worth potentially ₹2-3 crore.

IT Services

Multi-Geography Emissions and Decarbonization Pathways

A Bangalore-based IT services company with 50,000 employees across India, US, and Europe:

• Scope 1: ~2,000 tonnes (owned vehicles, on-site power generation)
• Scope 2: ~40,000 tonnes (data centers, offices consuming ~50,000 MWh using India's grid factor)
• Scope 3: ~80,000 tonnes (employee commuting, business travel, supply chain - often larger than Scope 1+2)
• Decarbonization pathway: Corporate renewable energy procurement (10 MW solar PPA) could eliminate 8,000 tonnes of Scope 2 annually; hybrid work could reduce commuting-related Scope 3 by 15%.

Chemical Manufacturing

Process Emissions and Regulatory Burden

A pharmaceutical intermediates manufacturer in Gujarat:

• Scope 1: ~500,000 tonnes (process heating, chemical reactions)
• Scope 2: ~60,000 tonnes (electricity for reactors, cooling, separation)
• Total intensity: ~15 tonnes CO₂e per tonne of output (typical for fine chemicals)
• Regulatory burden: BRSR mandates full disclosure; CCTS creates incentive for process optimization investments.

FAQs: Carbon Accounting in India

What is BRSR reporting in India?

BRSR (Business Responsibility and Sustainability Reporting) is India's mandatory ESG reporting standard for listed companies. It requires disclosure of environmental, social, and governance performance across nine pillars. For large listed firms, BRSR includes mandatory Scope 1 and 2 emissions disclosure using GHG Protocol methodology and India-specific emission factors. BRSR compliance is verified by independent auditors and filed with stock exchanges annually.

Is CCTS mandatory for Indian companies?

CCTS (Carbon Credits Trading Scheme) is mandatory for entities covered under India's PAT (Perform, Achieve and Trade) scheme, which includes large energy-consuming facilities. For companies not explicitly covered under PAT, CCTS participation is voluntary but increasingly strategic as carbon pricing becomes mainstream. BRSR-filers should monitor CCTS exposure and plan for potential future inclusion.

What emission factor should I use for India?

Use 0.820 kg CO₂e/kWh for grid electricity in India (national average for 2024-25). This factor is updated annually by India's Ministry of Power. Do not use outdated or region-specific factors - they create audit risk and misstate emissions. For fuel combustion, use Ministry of Power or GHG Protocol approved factors (coal: 0.0941 kg CO₂/kg; natural gas: 2.04 kg CO₂/m³).

When should I start carbon accounting as an Indian SME?

Begin immediately if: (1) you supply to multinationals or export-focused companies (supply chain pressure), (2) you're considering listing in next 3-5 years, or (3) you operate in carbon-intensive sectors (cement, chemicals, steel). For smaller SMEs without such pressure, establishing foundational data collection systems now positions you ahead of evolving regulations. Early movers often discover efficiency improvements that improve both sustainability and margins.

How do I start carbon accounting as an Indian SME?

Start with Scope 1 and 2 basics: (1) compile one year of utility bills and fuel invoices, (2) calculate using India-specific emission factors, (3) document your methodology, (4) set targets for improvement. You don't need enterprise software initially - a structured spreadsheet suffices. As complexity grows (multi-site operations, supply chain requests, BRSR filing), migrate to dedicated carbon accounting platforms like Greenio that handle BRSR compliance, data management, and assurance workflows.

Conclusion: Future-Proofing Your Carbon Accounting in India

Carbon accounting in India is no longer a sustainability checkbox - it's a business imperative that bridges regulatory compliance, financial risk, and competitive advantage. BRSR's reach continues expanding (smaller listed companies will be covered soon); CCTS pricing mechanisms will likely become more stringent; and investor expectations for climate disclosure are accelerating.

The businesses best positioned for this transition are those establishing rigorous carbon accounting foundations today. This means:

• Investing in systems and data infrastructure to capture emissions accurately across all scopes
• Selecting India-appropriate methodologies and emission factors that reflect true environmental impact
• Engaging cross-functionally - finance, operations, procurement - to embed carbon consciousness throughout the organization
• Planning for transparency and assurance, knowing that regulators and investors will increasingly scrutinize reported figures

Greenio's platform is purpose-built for Indian organizations navigating BRSR and CCTS requirements. It automates emission calculations using India-specific factors, generates BRSR-compliant disclosures, tracks trends, and supports scenario planning for CCTS participation. For Indian businesses serious about carbon accounting maturity, platforms like Greenio compress the timeline from months to weeks - allowing your team to focus on decarbonization strategy rather than spreadsheet management.

The time to start is now. Your 2026 BRSR filing - and your competitive positioning in a carbon-constrained economy - depends on the carbon accounting decisions you make today.