I applied through college or university. The process took 1 day. I interviewed at Bain & Company in Oct 2011
Interview
Pre-interview reception the night before gave a good opportunity to meet interviewers before early morning interviews. Interview was standard 1:1 case interviews with a very short time up front for fit. Both cases involved some market sizing (in my case for non-US markets which was a bit difficult). Some time at the end for questions but mostly just cases.
2 cases for R1. Pretty straightforward cases about revenue optimization opportunities. There was a little bit of market sizing but all data needed was given. No behaviorals asked in round 1 for me.
Interview questions [1]
Question 1
What office did you choose and why? Do you have competing offers?
2 rounds, 1st round 2 small cases, not very difficult , market entry cases.
2nd long case with a deck to read and prepare answers..45 mins to read, 15 mins to answer
Three rounds of interviews, generally 2 rounds in person or remote with live consultants. Each round involves a 2-3 case interviews each, which generally also include a set of behavioural questions.