Applied through campus recruiting. 1st round was a written test-- basic market sizing, business cases, and some multiple choice math questions dealing with basic financial data. 2nd round was a 45-min behavioral interview (tell me about a time...), followed by a short quantitative case with a definite clear answer and a follow up qualitative question. 3rd and final round was at the office, 3 back-to-back case interviews with senior consultants/managers, followed by a lunch with consultants.