It took a whole day. Well, there were mainly 150+ jobs seekers. so for this massive gathering, they conducted written exam (technical) which were pretty easy(you can secretly use your mobile for answers but make sure you don't get caught :D). They took almost 2 hours to check and announced the results after which number came down to 75+. Almost half of them were asked to leave. then after 1-hour long wait, they started with face-to-face interview round which was last one. I think they were biased. Furthermore, they were not spending more than 2 minutes in face to face round. Now you could imagine how rapid fire it was. In almost 2 minutes, the interviewer asked me almost 10 questions. Above all, they were asking same sets of questions to every candidate and only those candidates were making up to it which were extremely good-looking. Not kidding. So would suggest you look good and if formals don't really suit you then go with some simple and casual attire but show yourself best. The interview is pretty easy. Also, carry your phone which has 12 hours internet connection because this helped the most.