Cognizant — offer letter

Address: Bangalore, Karnataka

Cognizant technology solutions — offer letter not received for interview on 29th sep 2018 at bangalore
On september 29, 2018 at bangalore manyatha tech park for role automation test engineer in cognizant. For coimbatore location
I cleared all the rounds and including hr round. They made me fill a form with all my details on the same day.

Hr told me that with in 1 week i can expect offer letter.
Its been 1 month now and i have not received any reply from them.
I have mailed regarding this to hr but there is no reply from them.

Kindly let me know sir what is the status of my offer letter...