First round is aptitude + technical round. There are questions on quants and logic and 2 programs out of three which are on basic concept. After clearing this round we are called to there office for technical interview. There are 2 technical round. In First round they start with some puzzle like wrong label on boxes,3 bulbs, magical pond etc. and we to answer at least 2 anyhow. Then they have our first round answer sheet from which they ask us to explain logic of program written in aptitude test or can give different program to write there. 2nd technical round is for checking more knowledge about our technical concept. Then the last round is HR round which is for formality.