First round was telephonic interview followed by 2 test in the second round. Final round is onsite with interviews with several people form the company. The tests cover various topics in algorithms, programming,probability and operations research

There are three rounds of interview. The first round is IQ test and pseudo code test. The second round is algorithm analysis, I was asked how to get the shortest path from one place to another place if there is a big graph. The third round is coding test.