How to claim labor rights and settle a loan after redundancy?

I was asked to leave by a private bank that I was working for by saying that I have provided wrongful educational information.

This happened after 6 years of working for them. I was told that either I resign or they will write in my termination that I produced wrongful educational information/documents.

I chose to resign and my medical card was taken immediately. This was my only source of income and now they want me to arrange for the outstanding loan.

I did not provide any wrongful documents or information. How can I get my loan waived and claim my gratuity and other dues?

Thank you