The first round was a behavioural + case interview. For the case, you would have some time to work on the case by yourself and then present your thoughts to the interviewers. The case was pretty straightforward and qualitative. You just need to support your point with reasoning. The final round was a behavioural + individual case + group case. The individual case in the final round was more number heavy, so knowing the math well will be very helpful. The group case was similar to a case comp setting where you would have an hour to work with your team and then present. All of the cases were marketing & telecom related, so I would suggest researching on the industry & company products prior to the interview.