I applied through off campus. There was an aptitude test of 4 sections which was of quiet easy level.If you clear this round you have to go through three rounds. 1)case study+ case interview : this is the toughest round . there are generally 3 sections having 3 questions each and these sections individually have 3-4 graphs or statistics tables...etc. Read questions and instructions which are at the beginning very carefully. In the case interview they check your approach towards how you arrive at any of the answer. they might ask you to make some additional changes to increase sales,bonus whatever your case is. 2)if you clear this round they give you some guesstimate questions to solve ,puzzles to solve . They might ask you about your final year project. 3)the third round is principal interview which mostly checks the confidence level. My interviewer also asked many questions related to the case study. She asked to plot some graphs on the basis of that case and asked me to analyze and tell the outcome from that graphs. and finally i got through..