The interview has been performed by two consulting managers, one of them became my manager. At the beginning of the interview, both consulting managers introduced the company as well as their respective business unit. They also allowed the interviewee to ask questions of all kinds. After that the questions were shifted towards me. With appropriate preparation and knowing who you are, the questions are not so tough. But may be it was my luck, that I had previous interviews before, which made me more confident. After the main interview, there was a case study. They gave me 15mins to prepare. Then I had 5-10mins to present my results, which went pretty well. Then after that, there was a bit time for Q&A and eventually the interview was over. The interview lasted for a max of 1 1/2 hours.