A listed Indian textile manufacturer files BRSR annually. Their SEBI compliance is in order. The Scope 1 and Scope 2 figures appear in the BRSR report, signed off by management, submitted to the exchange on time.
Then their EU buyer — a large European fashion retailer operating under CSRD — sends a new supplier data request. It asks for emissions data in GRI 305 format. The compliance officer assumes this is a separate process, probably involving a different consultant and a different data collection exercise.
It is not. But understanding why requires knowing where GRI 305 and BRSR Principle 6 align, and — critically — where they diverge.
What They Share — The Common Foundation
Both GRI 305 and BRSR Principle 6 are built on the same underlying standard: the GHG Protocol Corporate Accounting and Reporting Standard. Both treat Scope 1, Scope 2, and (to varying degrees) Scope 3 as the structural framework for emissions disclosure.
The shared requirements:
- Scope 1 GHG emissions: Total direct emissions in tCO₂e — required by both, using the same calculation methodology
- Scope 2 GHG emissions: Total indirect emissions from purchased energy — required by both
- Reference to GHG Protocol: Both frameworks cite GHG Protocol as the acceptable calculation standard
- Methodology and emission factor disclosure: Both require disclosure of which factors and standards were used
- Emission intensity metrics: Both require intensity figures, though with different denominators (more on this below)
- Verification: Both frameworks have provisions for third-party assurance, though the requirements differ
One verified Scope 1 and Scope 2 inventory — structured correctly — satisfies the foundational data requirement of both. The GRI compliance hub details the full disclosure mapping across GRI 305, 303, and 306.
Side-by-Side Comparison
| Requirement | GRI 305 | BRSR Principle 6 |
|---|---|---|
| Scope 1 (tCO₂e) | Required — GRI 305-1 | Required |
| Scope 2 (tCO₂e) | Required — GRI 305-2 | Required |
| Scope 3 | Required — GRI 305-3 (all 15 categories) | Required only if material; optional otherwise |
| Intensity metric | Per net revenue or any relevant chosen denominator | Per ₹ crore of turnover AND per unit of physical output |
| GHG breakdown by gas | Required — CO₂, CH₄, N₂O, HFCs, PFCs, SF₆, NF₃ separately | Optional (tCO₂e aggregate acceptable) |
| Biogenic emissions | Separately disclosed — GRI 305-1 and 305-3 | Not specified |
| Base year | Required — must state base year and reason for any recalculations | Not explicitly required (year-on-year comparison assumed) |
| Verification | Recommended (external assurance) — increasingly expected by buyers | Required for BRSR Core companies (top 150 listed by market cap) |
| Organisational boundary | Operational control or equity share method — state which | Operational control (standard approach) |
| Scope 2 method | Requires both location-based AND market-based figures | Location-based only (market-based optional) |
Where They Differ — The Practical Gaps
1. Gas-by-Gas Breakdown
GRI 305-1 requires Scope 1 emissions reported by individual greenhouse gas: CO₂ separately, CH₄ separately, N₂O separately, and so on for HFCs, PFCs, SF₆, NF₃. BRSR accepts an aggregate tCO₂e figure — the GWP-weighted total.
For most Indian textile and general manufacturers, CO₂ from combustion dominates Scope 1 (typically 90%+), so the gas breakdown is not a calculation burden. The issue is whether your data system tracks by gas type. A system that records “fuel combustion → tCO₂e total” but not “CO₂ separately, CH₄ separately, N₂O separately” cannot produce GRI 305-1 compliant output without restructuring the underlying calculation.
Sustaineve tracks all seven Kyoto gases individually at source, with separate GWP weighting per gas — so GRI 305-1 gas breakdown is a direct output, not a reconstruction.
2. Biogenic Carbon
GRI 305-1 requires biogenic carbon emissions — CO₂ from the combustion of biological materials (biomass, wood waste, agricultural residue) — to be disclosed separately from fossil fuel emissions. They are not included in the tCO₂e Scope 1 figure; they appear as a supplementary disclosure.
For textile manufacturers using biomass boilers (common in Panipat and Punjab for rice husk and bagasse combustion), this is a material distinction. A BRSR report typically folds all combustion into tCO₂e. GRI 305 requires the biogenic fraction to be separated. This requires tracking fuel type at source — not just total fuel input.
3. Scope 2 — Location-Based vs Market-Based
GRI 305-2 requires disclosure of both the location-based and market-based Scope 2 figures. BRSR requires only location-based (grid average emission factor, from CEA).
Market-based Scope 2 applies renewable energy procurement: if you have Power Purchase Agreements (PPAs) with renewable generators, or Renewable Energy Certificates (RECs), the market-based figure reflects this. For manufacturers without any renewable procurement, location-based and market-based will show the same number. For manufacturers with PPAs, the two figures will diverge — and showing the market-based improvement is part of the value of renewable procurement.
4. Scope 3 Depth
GRI 305-3 requires disclosure against all 15 Scope 3 categories where material. BRSR currently only requires Scope 3 if management determines it is material — most manufacturers opt out.
For an Indian manufacturer providing data to an EU buyer under CSRD, GRI 305-3 is effectively requested (buyers will want the Scope 3 data even if BRSR does not require it). This is where the divergence between BRSR compliance and buyer expectation is widest.
Which One Does Your Buyer Actually Need?
BRSR is regulatory compliance. For SEBI-listed companies, it is mandatory. No option to substitute GRI for BRSR. The BRSR filing covers Indian regulatory obligations.
GRI is international buyer currency. EU buyers under CSRD, US buyers with voluntary ESG commitments, and increasingly Indian listed companies filing supplier questionnaires all use GRI as the common reference. “GRI-aligned” is a signal of disclosure quality, not a separate compliance system.
The practical answer: one verified inventory satisfies both, with minor additions:
- BRSR output: total Scope 1 (tCO₂e), total Scope 2 (tCO₂e), intensity per ₹ turnover, intensity per unit production
- GRI 305 output: same plus gas breakdown by type, biogenic separately, market-based Scope 2, base year stated
The incremental data requirement for GRI on top of BRSR is: (1) gas-type tracking, (2) biogenic fuel identification, (3) market-based Scope 2 if renewable procurement exists. These are configuration choices in how emissions are recorded — not separate data collection exercises.
How to Report Both from One Dataset
The correct architecture is a single emission entry that records:
- Source type (stationary combustion, mobile, fugitive, etc.)
- Activity data (e.g., 50,000 litres of diesel)
- Fuel type (diesel — enabling gas-by-gas split)
- Biogenic flag (yes/no — enabling GRI 305-1 biogenic separation)
- Period and facility
From this single entry, both BRSR output (aggregate tCO₂e) and GRI 305 output (gas-by-gas, biogenic separately) can be generated without dual data collection.
Sustaineve’s reporting module generates BRSR Principle 6 and GRI 305 outputs from the same underlying inventory — no separate data entry, no separate consultant engagement.
The BRSR filing and the GRI disclosure are two outputs from the same dataset. If your data infrastructure cannot produce both, the problem is the infrastructure — not the frameworks.
Request a demo to see BRSR and GRI output generated from a single Sustaineve inventory.