Interviewed at the office. 4 interview rounds after CV shortlisting. 1st round had profile evaluation, guesstimate, puzzles and case study. This is the most important round. They will go into the depth of your profile and evaluate each and every point. Usually 2 members in the panel. In the following rounds you interview with members higher in the business heirarchy and they evaluate your personality and do stress tests and understand why you are applying for the position. overall a very friendly atmosphere.