ZS Associates Business Analytics Associate Consultant interview questions

There are three rounds each being an elimination round. First is a case study round, then a behavior round followed by a Fit to the company round. I got a case study which is quantitative and involving market share and size of market. There were 5 questions which were needed to be answered. The second round had guesstimates and puzzles and a brief on myself. The third round had questions related to CV my past work ex and typical HR questions. The interview went on till 8pm which was a draw back

selection process started with an aptitude test and an communication skill test. it had 50 que to be solved in 1 hour. after clearing aptitude test 2 rounds of interviews were arranged, one technical and one HR. technical interview included basic puzzles, case studies. HR round was normal introductory part.