Cognizant Technology Solutions — Delay in receiving the offer letter from Cognizant

Hi Team
I am Surbhi Arora. I have attended technical interview and got the confirmation mail saying that I got selected and on 15 August 2021 I have received the mail to submit the CIS candidate information sheet to proceed further.

Later on October, I got a HR call and HR confirmed that they will release the offer letter in two days but it's been more than a month now I still I haven't received got my offer letter and also no update.

please help me in getting the offer letter.

thanks in advance.