@GIRISH SHARMA In addition to the below responses.
Use the Azure pricing calculator to estimate costs for different Azure SQL Database configurations. For more information, see Azure SQL Database pricing.
SQL Database initial cost considerations
When working with Azure SQL Database, there are several cost-saving features to consider:
vCore or DTU purchasing models
Azure SQL Database supports two purchasing models: vCore and DTU. The way you get charged varies between the purchasing models so it's important to understand the model that works best for your workload when planning and considering costs. For information about vCore and DTU purchasing models, see Choose between the vCore and DTU purchasing models.
Provisioned or serverless
In the vCore purchasing model, Azure SQL Database also supports two types of compute tiers: provisioned throughput and serverless. The way you get charged for each compute tier varies so it's important to understand what works best for your workload when planning and considering costs. For details, see vCore model overview - compute tiers.
Regards,
Oury