Company holding my PF and Relieving Letter both against loan ?

I mailed to them and they are saying first clear the dues otherwise they will not give my PF and Relieving letter. what to do ?? Mail is below which I send to them... I just wanted to confirm with you can company hold the PF and Relieving letter both ? If holding my PF solves the problem then I would request you to release my Relieving letter. Because has I can see the PF amount is almost similar to FNF amount. As I said I resigned from the company in August 2015 due to my medical reason I met with the accident while coming to office in Noida and had slip dics problem which force me to resign, otherwise i was paying that loan. When company gave me that special loan I never signed any document stated that If I have to resign from the company due to medical reason company will hold my PF and Relieving Letter or any other term and condition was signed by me. However, now i am perfectly fine and ready to join company with same package and I am ready to pay that loan from my salary. Otherwise without the Relieving letter no company will hire me and I will unable to pay that amount. my financial situation is not that good at the moment without job how I will pay the FNF amount? So I again request you to help me with the same.