initially there was a aptitude test,it was very difficult,u need complete hands on aptitude to clear this round. Practice makes a man perfect...., then there was a technical round, they asked about c, c++, java. in hr round they asked about your background, about your likes and dislikes,hobbies,strengths,weakness. In aptitude round only there was a essay writing round,people who cleared aptitude only could write the essay....more than 3 grammatical or (other) errors, u wont clear that round.