Tata Consultancy Services Java Back end Developer interview questions

It was a walk-in drive. The interview process was smooth. First, they verified my credentials, such as year gap, years of experience (YOE), education, etc. After that, they took me to the interview premises where the Technical Round (TR) and Managerial Round (MR) were conducted. They informed me that I was selected in both the TR and MR rounds, and that the HR team would call me the following week. However, it has now been more than 15 days, and I am still waiting for the HR call.