TCS — No reason BGV Negative

I joined TCS on Aug 29th 2022 and as part of onboarding before joining the organisation I uploaded all the required documents. Details were verified and no concern was raised.

After I joined the company BGC Team informed that I haven't uploaded one organisation document where I worked for two months and I have shared that document immediately to them. PFA email from HR on the same.
No concerns were raised or informed to me even then.

Now I am being informed that BGC is negative from BGC team and also I am being forced to do resignation by the HR who is not ready to hear an explanation which is unprofessional.

I requested them to please provide reason for forcing resignation when all my documents are intact and have no issue in them and also requested them to recheck my BGC, and with out any mail they terminated me.