Got a call for Scheduling of interview. 1st round was full of technical interview, then when i cleared i got another phone call for 2nd round of interview within 30 mins. 2nd round was scheduled for 15 mins but it went around 45 mins in which it was technical as well as some tricky questions which where funny to answer. Then a final call after 2 day when i got through. They check only the level of confidence, the level u show they will drag you to that level. So be on what confidence you have. It will help you to answer perfectly, even though you are wrong tell it with confidence.