I applied through university. The process took 2 weeks. I interviewed at McKinsey & Company in Jun 2009
Interview
the firm made a presentation at my campus. I submitted the application online and got invited to participate in a test. the test has a few business cases in the form of case study questions. its not that hard but you have to be familiar with the concept. (the book case in point is recommended).
I passed the test and got an interview. the interview consists of both fit interview(the usual leadership questions and why do you want to work here etc..) and case study interview.
First you get an HR Round, then 2 back to back interviews then 3 interviews. The overall process took around 2-3 weeks, it was not very difficult very fast turnaround
Interview questions [1]
Question 1
PEI, describe a specific scenario and then get asked details
I interviewed at McKinsey & Company (New York, NY)
Interview
Positive experience until the super day. The scheduling was quite long and they gave me a month's gap between my previous round and my final round. But overall everyone speaks eloquently and thinks logically. My interactions with senior partners are also very positive; they ask insightful, probing questions and were encouraging throughout the interview. I thought I smashed it, but one of the partners called me the other day and rejected me.
After submitting my application in their portal. In about two days I recevied the link to do their Solve assessment, The assessment had three games. I was however not selected for the next rounds.