I applied through college or university. The process took 3 weeks. I interviewed at Protiviti (Bloomington, IN) in Feb 2015
Interview
Career fair, information session.
First round: behavioral
Second round: case
Third round: office visit
For the spring semester, they had a back to back first and second round interviews. I have heard that for the fall semester, the first two rounds do not happen in this way. For the office visit, there were a mix of intern candidates and full time consultant candidates.