Whole process took really long, I had to write to them twice to enquire about my application's status before they replied and called me up. First round was a basic resume interview that was quite easy, just know your resume cold. Second round was tough, or rather I had a tough interviewer (a certain senior manager), seeing how some people said it was easy. He asked behavioural questions, but made it a point to probe further such that it can get really confusing sometimes. REMEMBER: DON'T LIE. The interviewer will not hesitate to interrogate and expose you. I think I bombed on this part, because I made up certain details given that I couldn't really remember some of the events and got awkwardly exposed. Also, always remember that you're meant to answer the primary question- the very first one asked- so don't ramble on and forget about it. The interviewer was quite happy to take all the questions (I asked about 4 or 5 of them), and came out with really long answers. Total interview duration was about 1.5 hours +.

there is a Phone screen and then first round case interview, afterwards second round group case lastly slide submission for a case interview. Fairly straightforward, there were differences from interviewee to interviewee