Cognizant GenC Developer interview questions

I didn't get the call even after rescheduling three times. I sent the mail..but still they keep on rescheduling I kept on waiting during my time slot..it's frustrating. I just prepared a lot for this..but I can't get the proper response

Rubbish interview, asking irrational questions and questions from other things than coding. They pick random employees to take an interview, shambolic interview experience. Will never again sit in a cognizant interview