Cognizant — Unethical behaviour

Hello Team,
I had given interview on[protected] and then from Cognizant HR mail me and asked me about documents required as well as I filled CIS form and send back to them. Then HR was saying within 2 Days we do HR discussion then we can release your offer letter.

But since then Even I am sending mails and call that HR she is not responding at all.

I just want to know other process will going to happen or not. If you are hiring someone please provide them details.