There were 3 rounds of interviews, the first round involved 4 panels. The person in my panel rejected all those whom he interviewed. Therefore I felt the process to be biased.

General Aptitude at campus followed by Discussion round followed by 2-3 rounds of interview. In interviews there were mix of questions from statistics, econometrics, Guesstimates and puzzles. The whole process was very smooth. The people and environment there is also awesome.