Cognizant Technology Solutions — get offer letter but not getting joining from cognizant

Address:

ICC Trade Tower, Senapati Bapat Rd, Laxmi Society, Model Colony, Shivajinagar, Pune, Maharashtra 411016, 411016

I got offer letter from cognizant and i have submitted my the documents on 1 jan 2019 but on my joining date 18th feb 2019 my onboarding pass is not generated because of bgv pending, i also send document with recruiter cyril sebastian but still my bgv is not completed please let me know.

I left my previous job to join cognizant and cognizant is not giving me the joining date because of that currently i am job less.

My first company was startup company for three years i have worked on that company and for only first three month i didn't get my salary on account because of that i am not getting the joining.
I have submitted the 1 year bank statements, form 16, experience and appointment letter, still i didn't get the joining.

My email : [protected]@gmail.com
Mobile : [protected]