First of all you have to maintain all the basic process for Interview like formals only.They also use to check your personality.
1st Round Written Test of about 100 marks , All are having 4 option you have to choose from only one.
Test will be around 1 hours. They also provide Tea and Lunch of their restaurant.
2nd Round Face to Face interview around 30 minutes, 2 to 3 Interviewer will be there for checking whether you will able to speak in pressure or not. After all the verification and checking they will call you for joining.