Cognizant Technology Solutions — does not release offer letter after selected interviews.

Address: 600093

Hi,

I attended an interview at cts kanthanchavadi on feb 9th 2019 and cleared all the rounds.
At the end hr informed me that i will receive my offer letter in a week but i haven't received yet.
Meanwhile i received an email from cts talent acquisition to upload my photo in one of their portal.
After that, i haven't received any updates. I am getting mail "your application has been kept “on hold” currently."
I am not sure if normally they would take almost a month to release the offer letter.