Core banking migrated to hybrid cloud, zero data loss
Leading Indian bank — legacy core banking system to hybrid cloud, zero-downtime mandate from RBI compliance team.
The bank had been deferring a long-overdue migration for three years. Regulatory pressure from the RBI, combined with a critical infrastructure audit, finally set a hard deadline.
Our team of 14 cloud architects, network engineers, and database specialists flew into their Pune data centre 48 hours before the migration window.
We executed a phased lift-and-shift using AWS Database Migration Service with near-zero replication lag, coupled with a custom canary routing layer that allowed instant rollback at any stage.
Zero transactions were lost. The core banking application came back online 6 hours ahead of schedule. The bank's CISO described it as "the smoothest infrastructure project we have run in a decade."
Post-migration, we deployed a continuous compliance monitoring layer and handed over a 140-page runbook. 12 months on, the environment maintains 99.99% uptime.
We delivered a full lift-and-shift of their core banking environment in 72 hours. Not a single transaction was lost. 99.99% uptime in the 12 months since.