it takes 3 round 1st one was group discussion and 2nd was written with easay writiing and last one was PI.. in pi they asked u logical questions like how much onion do u eat in year.. xactly they want to know ur approach.. they producess stress on u by roaming around u and try to make u uncomfortable..but dont get nervous face them with smile and ans confidently..

Good and humble nice it was interacting with the person he was very knowledgeable and was asking mainly question of estimation also you should know about the company profile as it is very white and in the interview process