Number of rounds based on your experience. I had faced 5 rounds, out of which 3 are online test and 2 are face to face. Once you get selected you have to give client interview to get the project l.

There could be 5-6 rounds MCQ, Leet code style coding, 2 technical interviews, managerial then HR round. There could also be a 3rd round of technical interviews depending on feedback in previous rounds