HR asking me to resign and i need to save my job

I have done my graduation from Manav Bharti University solan HP from 2009-12. At my joining in MNC I gave my scanned marksheet for University. Now after 3 months of joining, HR head calls me and inform your BGV is red as education documents are not verified. There is case going on university for fake degrees and my HR said we are unable to get any response from University. I don't have original documents as i lost them during COVID and didn't get time to reissue them. I provided scan copy at time of joining. Now they want me to terminate. How can I defend myself and secure my job? The university is registered under ugc on website. Please help me what I can do to save my job as i don't have original documents of graduation with me nor I can verify them from University as documents for University is seized by committee formed by Himachal High court due to ongoing court case and they can verify only after they will get documents back.My career is at stake. Is there any legal way to save my job? Can I get time extension till court case over?