Cognizant — offer letter release

Hi,
I was interviewed by one of the cognizant training partners niteo it, bangalore and successfully completed the training and gave face to face interview on sep 30th 2019. I have not received any confirmation mail from cognizant till now, it's been a month since i am waiting. We were 15 people in the batch, none of have got mail and everyone are waiting for doj.
When asked at niteo it, they don't response properly.