Cognizant — No intent of letter/Offer letter No proper response

Address: Mumbai

I am Pankaj Bagul I have attended of technical interviews on 19th Nov 2021 and got confirmation mail saying that I got selected and to submit the CIS form to proceed further, then I have submitted the CIS form with required details and replied back.

Later on 23rd Dec 2021, I got HR call and discussed about my package and DOJ, after that HR confirmed that they will release start background work. 13th January is my last date current company and I still not having confirmation email. I am not getting response from anyone.
Kindly Help!
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