This process happened at a location in New Delhi. I was rejected in the first round. Their questions were related to topics which were not mentioned in my resume. Around 30-35 candidates were there

The interview process consisted of three rounds: an initial virtual technical round, followed by a face-to-face technical round, and finally a managerial round. All the rounds were relatively straightforward, and the discussions went smoothly with no indication of any major concerns. However, after successfully completing all three rounds, I received an unexpected rejection without any feedback or explanation. This lack of transparency and communication reflects poorly on the overall professionalism of the hiring process.

Often you get interviews not according to your background. And they will realize until the interview that the skills doesn't match, which leads to lost of time/opportunities during the time you waiting for a project