They put you through 3-4 rounds of written tests followed by a culture round. Interview is a one day drill. They put you through 3-4 rounds of written tests followed by a culture round.

It had 2 segments.. aptitude and writing the aptitude was little challenging with no options. the writing part was comparatively easy. but the process was based on aptitude, so people weak in maths and strong in writing couldnt even have a chance of attending the interview