First there was an aptitude test, mainly maths and some puzzles (very standard), next I was called for a 1:1 interview, the guy was really nice. I was nervous, he understood that and asked me to relax. First question he asked me whether I had lunch and offered me a five star as I hadn't :). He started with simple data structure and algorithm questions, then we discussed my final year project for a long time and lastly he asked some standard HR questions. It was a nice experience.