Cognizant Programme Analyst interview questions

It was a pool drive.iam in stream of information technology.firstly there is an amcat exam at home by video recording.then i got a msg after 4days that iam eligible for interview....and there tr and hr rounds, but didnt mentioned interview date.then after 20days i got a message of interview venue .nearly 250 students attended.tr was done difficult,for different students different quentions were asked.so many of students were sorted out here.hr was quite common.