Payment switch
CRITICALRBI PSO Directions §17(c)
Identify the vendor-built systems inside regulated services, keep every release current, and produce independent recovery evidence before an incident.
PAYMENTS & FINTECH SYSTEMS
Payment switch
CRITICALLedger and settlement
CRITICALKYC and fraud controls
HIGHReconciliation engine
HIGHWHAT THE REGULATOR ASKS
In summary
Non-bank Payment System Operators must obtain source code or establish software escrow for critical software, with the arrangement available for regulatory examination.
THE EVIDENCE PACK
Build Report
Deployment Runbook
Replication Report
SBOM
Signed Proof of Recovery
Institutional proof
A growing network of banks, payment institutions and financial-services leaders relies on Castler’s trust infrastructure for controlled, accountable money movement.
REGULATORY OBLIGATIONS
Non-bank payment system operators are subject to RBI PSO Directions 2024 §17(c). Large PSOs had an April 2025 deadline; Medium PSOs April 2026.
PAYMENTS & FINTECH
Bring the critical system stack and applicable rulebook. We’ll map custody, verification and signed evidence.
Book a 15-min briefing