Round 1: Both technical and HR questions. They were based on R, normal coding questions based on time series, binary search. Round 2: Purely technical questions. He was asked to explain the chemical engineering projects he had done in his 2nd and 3rd years, write some syntaxes, answer some guesstimates and puzzles. Round 3: Completely HR questions such as: Sell yourself to us in one minute, will you pursue higher studies in the future,why this company?