Thy have 4 rounds of interview 1.written 2.technical 3.lead technical 4.HR these are the interview process u have to face in interview..so for the total processing thy will take 2 to 3 days and before that thy will screen you by telephonic and provide the call letter Note-without call letter thy won't process the interview...if u come directly thy won't process but thy just take ur resume nd take normal discussion for ur satisfaction(dummy interview )