Visit their website and read the notification thoroughly. Generally all queries are resolved in notification, else you can visit the FAQ section. The selection process - Online Written Exam + Descriptive Test and Psychometric Test + Group Discussion + Interview
Firstly go to their website and read the notification thoroughly, each and every information will be given in the notification. The selection process for PO consists of Online Written Exam + Descriptive Test and Psychometric Test (Qualifying) + Group Discussion & Interview