Case against college

Hi Sir, I want to check if I have a case for compensation against my college. I dropped out of college in 2017 but my original 10th and 12th marks card were held ransom by the college asking me to pay the fee for 4th year even though I left the college in 3rd year and had already paid 3rd year fees. I visited the college once or twice a year for 3 years straight and was told to pay the fees even though it was ruled illegal to hold documents by colleges. In October 2020, I sent an email and I have a email confirmation from principal asking to pay the fees. Again in February 2021 I sent an email but they responded stating college never asked for fees and I didn’t show enough interest to collect documents in the past. I have an email proving they asked for full fees. They even collected 9000rs as processing fee just to go and get the documents from store room in February 2021 and did not even furnish a receipt for this. When I questioned the fee of 9000rs just to get the documents by stating I will dispute it with my bank, my phone was taken and the chairman abused me and threatened to kill me, I went to the police to complain about this but the college came with a complaint stating I was creating a ruccous in the college so I withdrew from lodging FIR paid 9000 and got my documents. I don’t have proof to prove this last bit about threatening but I want to see if I have a case against them for holding my documents as ransom, my whole life was put on hold for 4 years as I couldn’t join other courses, apply for a passport/driving license without my original documents. I had to wait this long to save enough money to take this to court.