Flagship Programme

BRSR Core Assurance Sprint

A structured 12-week programme that takes your company from compliance gap to assurance-ready. Built for India's top 150-500 listed companies facing SEBI's expanding BRSR Core mandate.

FY 2025-26: Top 500 companies must have BRSR Core assessment or assurance
12Week Programme
9Core Attributes (49 KPIs)
100%Assurance-Ready
500+Companies Affected
SEBI BRSR Aligned GHG Protocol Compliant ISAE 3000 Ready GRI Standards NGRBC Principles
The Urgency

Most Companies Aren't Ready for Assurance

SEBI has accelerated timelines, but data infrastructure, governance processes, and internal controls lag far behind requirements.

72% of top 500 companies lack assurance-grade ESG data systems
~140 BRSR parameters across Sections A, B, C — 9 need reasonable assurance
FY27 Deadline: Top 1,000 must have BRSR Core assessment or assurance by FY 2026-27
Not Sure You're Ready?

Check Your Data Quality First — Free

Before committing to the Sprint, use our Pre-Assurance Validator to diagnose gaps in your BRSR Core data. Takes 15 minutes, covers 5 core KPIs, gives you an instant readiness score.

Free Data Quality Check → View All BRSR Deadlines
The Programme

12 Weeks to Assurance-Ready

A battle-tested sprint methodology that moves fast without cutting corners. Four phases, each building on the last.

Weeks 1-3
Diagnose
  • BRSR Core gap assessment across all 9 KPIs
  • Data availability & quality audit
  • Current governance structure review
  • Peer benchmarking (sector-specific)
  • Risk-priority matrix & sprint roadmap
Weeks 4-6
Architect
  • ESG data architecture design
  • KPI ownership mapping (RACI)
  • Data collection workflows
  • Internal controls framework
  • Calculation methodologies (GHG, water, waste)
Weeks 7-10
Build & Populate
  • Data collection across all 9 ESG attributes (49 KPIs)
  • GHG inventory (Scope 1 & 2, Scope 3 where required)
  • Social & governance indicators compilation
  • Evidence documentation & audit trail
  • Quality assurance & validation
Weeks 11-12
Assurance Prep
  • Mock assurance audit (ISAE 3000 methodology)
  • Finding remediation
  • Management assertion letter
  • Assurance firm briefing pack
  • Board presentation & sign-off
What You Get

Tangible Deliverables at Every Stage

Not just advice — production-ready artefacts that your assurance firm can audit and your board can trust.

📊

ESG Maturity Scorecard

Quantified assessment across all 9 BRSR Core KPI attributes with gap severity, peer comparison, and priority ranking.

🏗

Data Architecture Blueprint

Complete ESG data model — sources, owners, collection frequency, calculation methods, internal controls, and audit trail design.

📈

GHG Inventory Report

Scope 1 & 2 emissions inventory per GHG Protocol, with source documentation, emission factors, and calculation workbooks.

📋

BRSR Core Data Pack

All 9 ESG attributes (49 KPIs) populated, validated, and formatted for direct submission — with evidence binders for each data point.

🔎

Mock Audit Report

Simulated reasonable assurance engagement — findings, management responses, and remediation status. Your dry run before the real audit.

💼

Board Presentation Pack

Executive summary, compliance status, risk assessment, peer benchmarking, and recommended next steps for leadership sign-off.

Sector-Specific Expertise

We Know Your Industry's ESG Challenges

BRSR Core materiality varies by sector. Our playbooks cover 8 Indian industries with tailored KPI frameworks, peer benchmarks, and regulatory maps.

View Sector Playbooks →
Expert-Led Programme

Led by India's ESG Assurance Veterans

Our leadership team combines doctoral-level environmental expertise (Ph.D., IIT), chartered environmentalist credentials (CEnv, FIEMA), UNFCCC expert status, and 24+ years of delivery across India, Middle East, and UK. AA1000 Licensed Assurance Provider.

AA1000 Licensed CEnv & FIEMA UNFCCC Expert Ph.D. IIT 24+ Years
Why RSustain
Speed. Specialisation. Savings.

12 Weeks, Not 18-24

Traditional firm timelines are longer because they combine assurance prep with audit. Our Sprint is purpose-built for BRSR Core readiness alone — no bloat, no scope creep.

Rs. 8L-25L, Not Rs. 40L-60L

We specialise in BRSR Core preparation. Large firms charge enterprise consulting rates for similar scope. You get expert-led delivery at a fraction of the cost.

Pure Prep, No Conflicts

We don't provide the final assurance opinion — your independent provider does. No conflicts of interest, no audit scope compression, no compromised independence.

Investment
Choose Your Sprint Tier
Transparent pricing. No hidden costs. Payment milestones tied to deliverables — you pay as value is delivered.
Foundation Sprint

Companies ranked 500-1,000 | First-time BRSR Core filers

₹8,00,000 + GST
Payment in 3 milestones tied to deliverables
  • Full 12-week sprint programme
  • BRSR Core gap assessment (9 KPIs)
  • Scope 1 & 2 GHG inventory
  • Data architecture blueprint
  • BRSR Core data pack (populated)
  • Mock assurance audit
  • 2 board briefing sessions
  • 60 days post-sprint support
🔒 Secured by Razorpay · All fees attract applicable GST
Leadership Sprint

Top 150 companies | Global index aspirants

₹25,00,000 + GST
Payment in 4 milestones tied to deliverables
  • Everything in Accelerate, plus:
  • SBTi target-setting support
  • Net-zero transition plan draft
  • CDP response preparation
  • GRI + ISSB dual reporting alignment
  • ESG rating optimisation strategy
  • CSRD readiness (EU-exposed companies)
  • CBAM impact assessment
  • Unlimited board briefings
  • 180 days post-sprint support
🔒 Secured by Razorpay · All fees attract applicable GST
Existing Clients

Pay as per Proposal

Already have a proposal? Enter the amount specified and complete your payment securely via Razorpay.

🔒 Secured by Razorpay · All fees attract applicable GST · You will receive a GST invoice

Questions

Frequently Asked Questions

What exactly is BRSR Core and why does it need assurance?+

BRSR Core is a subset of 9 ESG attributes (49 KPIs) identified by SEBI as the most critical indicators. Unlike regular BRSR disclosure (self-reported), BRSR Core requires "reasonable assurance" from an independent assurance provider — similar to a financial audit. This means your ESG data must meet the same rigour standards as your financial statements.

Is my company required to do BRSR Core assurance?+

If you are among the top 500 listed companies by market capitalisation, BRSR Core assurance is already mandatory for FY 2025-26. For companies ranked 500-1,000, it becomes mandatory from FY 2026-27. This is the final step — all top 1,000 companies will be under assurance by next year.

Can we really get assurance-ready in just 12 weeks?+

Yes. Our sprint methodology is designed for speed without compromising quality. The 12-week timeline assumes dedicated client-side coordination. For companies with very low ESG maturity, we may recommend a 16-week extended sprint. The diagnostic phase (Weeks 1-3) will determine the right timeline for your organisation.

Do you provide the actual assurance, or prepare us for it?+

We prepare you for assurance. We do not provide the final reasonable assurance opinion ourselves — that must come from an independent assurance provider (typically a CA firm or specialised ESG assurance provider). However, our mock audit simulates the real assurance process so there are no surprises.

What is the payment structure?+

Payments are milestone-based, tied to deliverables: 30% at engagement signing, 25% after diagnostic completion (Week 3), 25% after data architecture & collection (Week 8), and 20% after mock audit & final deliverables (Week 12). This ensures you pay as value is delivered.

What happens after the 12-week sprint?+

All tiers include post-sprint support (60-180 days depending on tier). During this period, we support you through the actual assurance engagement, answer queries from the assurance provider, and help remediate any findings. Many clients then transition to our annual retainer model for ongoing BRSR compliance.

Which assurance provider should we engage after the Sprint?+

You should engage an independent assurance provider with ISAE 3000 (Revised) experience — typically a Chartered Accountancy firm or specialised ESG assurance provider. We provide a detailed assurance briefing pack to facilitate this engagement. Alternatively, our AA1000 Remote Assurance service provides independent assurance from Rs. 1,49,999.

Can you also generate our BRSR report and file it?+

Yes. After the Sprint, you can use our BRSR Report Generator to create a professional 140-parameter report, and our BRSR XBRL Filing Tool for digital submission to BSE/NSE. These are separate services that integrate seamlessly with your Sprint data pack.

After Week 12
Your Sprint Deliverables Unlock Three Pathways
The Sprint gets you assurance-ready. Here's what comes next.

Don't Wait for the Deadline

Book a free 30-minute diagnostic call. We'll assess your BRSR Core readiness and recommend the right sprint tier for your company.

Book Diagnostic Call →

Ready to start your ESG journey?

Book a free 30-minute consultation with our advisory team.