Hello.

Hope you are doing good. Cognizant generally takes interview in 2 steps one is the technical round which is a bit lengthy and the other one is he round . Student need to first clear the apptitude or coding exm to qualify for the technical round which is an elimination round and after that hr round where your are asked to show some of your documents . I think you cleaned the technical round ( hope for best) as they also reject in the he round as well.

Good luck