HR doesn't give you feedback if you are not selected, they should atleast reply with an email feedback that you are not selected. They want you to be on time for interview but doesnot value your time

The on-campus placement process consisted of multiple stages, starting with an online round. This was followed by three rounds of interviews, each serving a distinct purpose. The initial round was a technical interview, assessing candidates' technical skills. Subsequently, the technical managerial round evaluated their ability to handle managerial responsibilities in a technical context. Finally, the HR round assessed candidates' compatibility with the company's culture and their interpersonal skills.