Totally 2 rounds of Interviews.
First, it is a technical round. It's completely a different style of Interview. They don't ask you to write codes, instead, they show you some codes and ask for outputs and changes.
Second, it is a technical Analytical round. Yes, it is difficult. You cannot expect general questions. But the style of the interview is completely different and totally awesome. In this round, you will get questions from both technical puzzles and Analytical puzzles.