I had three rounds of interviews for a position at TCS: a technical round at TCS, another technical round with the client, and an HR round. Overall, everything went well, though the client round was a bit challenging. We discussed a range of technical topics, including database indexing, Terraform commands, AWS and Azure services, Terraform for resource management, and AWS services like VPC, S3, and RDS for high availability. They also asked about Jenkins for CI/CD, cost optimization strategies, and Maven for building Java projects. Additionally, we talked about managing identities in Azure, running Linux commands in Python, and using Pandas for data manipulation.