Hi there Siva
Thanks for using the QandA platform
Tryr enabling Active Geo-Replication in Azure SQL db to distribute workloads and ensure high availability across regions. do data partitioning. Use elastic pools in Azure SQL for cost-effective management of multiple databases with varying workloads. For read-heavy scenarios, deploy read replicas in different regions to reduce latency. Scaling out horizontally or vertically and considering distributed databases like Azure Cosmos DB for global distribution can further enhance performance and reliability for your expanding needs.
https://zcusa.951200.xyz/en-us/azure/azure-sql/database/failover-group-sql-db?view=azuresql
If this helps kindly accept the answer thanks ,much.