I attended an interview for the Department of DSAI. First, there will be an MCQ for 30 marks with negative markings. After that, if you get shortlisted, you will head to a panel of 4 members who will ask questions based on your resume. Questions will be asked to check on how deep your understanding of concepts, including the mathematical foundation. And there will be follow-up questions based on your explanations. You have to explain like you are teaching them, using the whiteboard.