Carbon accounting software in India: why now and what to look for
Carbon accounting software helps Indian companies measure Scope 1, 2 and 3 emissions to one standard, keep the evidence behind every figure and report the same numbers to SEBI, CCTS verifiers, EU customers and lenders. In India the case is now regulatory: BRSR asks for GHG emissions, BRSR Core requires a third-party check, CCTS sets plant-level intensity targets and CBAM puts a cost on embedded emissions in exports. The right tool is one that uses Indian emission factors, handles group structures and keeps your data where your policies require it.
Why carbon accounting in India has moved from optional to necessary
Five years ago, most Indian companies measured emissions for a sustainability report and little else. Four developments have changed that.
SEBI BRSR and BRSR Core
The top 1,000 listed entities by market capitalisation file a Business Responsibility and Sustainability Report. Under Principle 6, Scope 1 and Scope 2 emissions and GHG intensity are essential indicators, while Scope 3 sits among the leadership indicators. BRSR Core, the subset that must be independently checked, includes the greenhouse gas footprint, and the glide path for assessment or assurance now reaches the top 1,000 in FY 2026-27. Our guide to BRSR Core assessment and assurance covers the details. For GHG reporting in India, the practical consequence is that BRSR GHG emissions figures need a trail an outside party can test.
Value chain disclosures
SEBI's value chain framework, voluntary for now for the top 250 listed entities, covers partners above a set share of purchases or sales. Large companies are already asking their key suppliers for energy and emissions data, so MSMEs and mid-sized manufacturers are being asked questions they did not face before.
The Carbon Credit Trading Scheme
India's compliance carbon market sets greenhouse gas emission intensity targets for around 490 plants in aluminium, cement, chlor-alkali, pulp and paper, petroleum refining, petrochemicals and textiles, with iron and steel targets still in draft and fertilisers pending. Obligated entities must monitor, report and have their emissions verified each year. See our explainer on the India carbon credit trading scheme.
CBAM and EU customer requests
Since 1 January 2026 the EU's Carbon Border Adjustment Mechanism has been in its definitive period. Exporters of steel, aluminium, cement, fertilisers and hydrogen need installation-level embedded emissions, or their customers fall back on default values that are usually higher. Beyond CBAM, EU buyers subject to their own disclosure rules send supplier questionnaires on Scope 1 and 2 emissions and reduction targets. See CBAM compliance.
What carbon accounting software does
At its simplest, carbon accounting software turns activity data (fuel, electricity, refrigerants, travel, purchased goods) into emissions using emission factors, organised by scope and category. Good software also controls how that happens:
- Collection. Data comes from bills, meters, ERP extracts and suppliers, on a calendar, with reminders to each site owner.
- Evidence. Each entry carries its source document.
- Review. A second person approves an entry before it counts.
- Calculation. Factors are versioned, so the same input always reproduces the same result.
- Reporting. Approved figures map to BRSR, CDP, GRI, ISSB-aligned or ESRS-aligned reports without retyping.
Spreadsheets can calculate, but they rarely do the other four well. That gap is what assessors, CCTS verifiers and CBAM verifiers find first.
What to look for in carbon accounting software for India
Most buyer's guides list generic features. For carbon accounting in India, these are the points that tend to decide whether a tool works in practice.
| Requirement | Why it matters in India | What to ask the vendor |
|---|---|---|
| Indian grid emission factors | Scope 2 from DISCOM power should use the Central Electricity Authority's CO2 baseline database, which is updated roughly once a year | Which CEA version is loaded, and how are updates applied without changing past years? |
| Location- and market-based Scope 2 | Open access renewables, captive plants and renewable energy certificates change the market-based figure | Can contractual instruments be recorded per site, with evidence? |
| Multi-entity structure | Groups have listed parents, subsidiaries, joint ventures and many plants, often with different reporting needs | Can we set boundaries by equity share or control and roll up by entity, state and business? |
| INR and Indian fiscal year | BRSR runs April to March; spend-based Scope 3 and intensity ratios use rupee figures | Are April–March periods native, and is currency conversion recorded for intensity on a PPP basis? |
| Data residency | Many Indian groups and public sector firms require data to be held in India or on their own servers | Where is data hosted, and is on-premise deployment possible? |
| Facility-level detail | CCTS and CBAM work at plant and process level, not just company level | Can one inventory feed corporate, CCTS and CBAM figures from the same entries? |
| Supplier collection | Value chain disclosures and Scope 3 depend on MSME suppliers with limited resources | Is there a simple supplier portal, and are supplier submissions reviewed before use? |
| Audit trail | BRSR Core and CCTS both involve a third-party check | Can an assessor or verifier get read-only access to entries, evidence and changes? |
Standards your inventory should follow
Indian frameworks rarely prescribe a new accounting method; they rely on established ones. The GHG Protocol Corporate Standard is the most widely used basis for corporate inventories and for BRSR figures. ISO 14064-1 is common where a verification statement is wanted, and many companies prepare inventories that satisfy both. Our comparison of ISO 14064 and the GHG Protocol explains the differences. CCTS uses BEE's own monitoring and verification procedures, and CBAM uses EU monitoring rules, so a single platform should be able to apply different boundaries to the same underlying data.
Emission factors deserve particular care. A Scope 2 figure calculated with one CEA version cannot be compared with one calculated with another unless you record which was used. Our emission factors guide covers the CEA database, DEFRA/DESNZ, IPCC and supplier-specific factors.
A practical rollout path
- Set the boundary. List legal entities, plants, offices and warehouses, and decide on equity share or control.
- Start with Scope 1 and 2. These are what BRSR Core, CCTS and most customers ask for first. Load twelve months of fuel and electricity data with bills attached.
- Assign owners. Give each site a preparer and an approver, and a monthly or quarterly collection calendar.
- Screen Scope 3. Use spend data to find the categories that matter, usually purchased goods, transport and, for some sectors, use of sold products.
- Bring in key suppliers. Start with those that account for the largest share of spend or emissions.
- Run a dry close. Close a half year as if for your assessor, and fix the gaps while there is time.
How EKOTRACE helps
EKOTRACE is built by Ekobon in Mumbai for companies reporting in India and across export supply chains. It calculates Scope 1, 2 and 3 emissions (all 15 categories) under the GHG Protocol and ISO 14064-1, with location- and market-based Scope 2 and versioned emission factors. Every entry carries evidence and passes maker-checker approval, and an audit trail records every change. Data arrives through guided entry, bulk upload or ERP batch import, and suppliers submit through a supplier portal.
The same approved data feeds BRSR, CDP, GRI and ISSB-aligned reports in the ESG module, and CBAM embedded emissions at installation and process level. EKOTRACE can be hosted in India or on your own servers, with SSO and MFA; see security. For an overview, visit EKOTRACE.
Frequently asked questions
Is carbon accounting mandatory in India?
For the top 1,000 listed companies, BRSR requires Scope 1 and Scope 2 emissions disclosure, and BRSR Core requires a third-party assessment or assurance on a glide path. Plants notified under the Carbon Credit Trading Scheme must monitor, report and verify their emissions intensity. Other companies are not legally required to report, but many are asked for data by listed customers and EU buyers.
Which emission factor should Indian companies use for grid electricity?
For location-based Scope 2 in India, the usual choice is the weighted average emission factor from the Central Electricity Authority's CO2 baseline database. Use the version that matches your reporting year where available, and record the version so that figures can be recalculated. Market-based Scope 2 uses contractual instruments, such as renewable energy certificates or supplier-specific factors.
Can one system handle BRSR, CCTS and CBAM?
Yes, if it records data at plant and process level and lets you apply different boundaries and methods to the same entries. BRSR is company-wide, CCTS works at the obligated plant and CBAM at installation and product level. Keeping them in one system means the figures reconcile.
Does carbon accounting data have to be stored in India?
Requirements depend on your sector, contracts and internal policies, so check them with your legal and IT teams. Many Indian groups and public sector companies prefer hosting in India or on their own servers, so it is worth confirming a vendor's hosting options before you buy.