Cognizant — offer not released, got confirmation mail for cts-08/12/2018

Address: Bangalore, Karnataka, 560037

I was interviewed in CTS for BW on Hana on 8th December 2018 at manyatha tech park Bangalore, completed all rounds same day. After 15 days i got confirmation of automated mail saying selected but after that there is no update. its been more than 50 days.. any one attended the same and got offer letter. please let me know if anybody got offer attended on the same day.