i am interviewed through campus recruitment process there was five rounds 1 round: we had 15 maths questions in which we need to write down answers on page no mcq and one essay about long term goal/role model 9 out of 90 were selected 2 nd round: it was a case study round for 45 mins we had to solve it 3rd round: interview based on case study. they were looking for approach. 4th round: behavioural interview 5th round: pi and some puzzels were asked