Cognizant Technology Solutions — Onboarding issues with cognizant portal

I am Yashwanth, and I am a student of Madanapalle Institute of technology and sciences(MITS), Chittoor.[ECE Branch 2018-22]. I have been placed in Cognizant as a GenC during our campus placements.

Cadidate Superset Id : 196903
Mail ID : [protected]@gmail.com

On Jan 23, 2022 I recieved an email regarding logging into Cognizant portal to complete Pre-Joining Formalities and uploading documents for BGV
How ever when I am trying to login, it is showing a login error, I am attaching the screenshots of the same

Request Id: 97a517e1-107f-4532-be71-47f832362d00
Correlation Id: 46096e[protected]b76d-386f967fdc1a
Timestamp:[protected]T05:53:04Z
Message: AADSTS50105: The signed in user 'yashwanthyashu450_gmail.com#EXT#@CognizantOnline.onmicrosoft.com' is not assigned to a role for the application 'bb557c9c-73c3-4026-9da2-0b57ec4204b4'(ENT_onecognizantexternal_SAML_PROD).

Kindly please look into this matter