For cancellation of sale agreement

I have a plot of 340 sq mts in Port Blair Andaman. I planned to sell it and made a sale agreement with a person on 08 nov 2016. I took an advance of 1 lac and rest 44 lacs were to be paid by him at the time of registration of the property. According to the agreement the the deal was to be done in 5 months. I got all the papers in the 6th month which was not my mistake which was because of the slow process of administration. Since then this person has got me stuck. It is now almost 7 years. Last year when I planned to sell it to somebody else he didn't went to the court instead he registered a complaint to deputy commissioner, Tehsildar and sub registrar and now they are not clearing my papers, I don't want to go to the court because first I don't have enough money to hire a lawyer and secondly I don't want to indulge myself in a long process. I gave him a notice to take the money back and cancell the agreement but he didn't responded And even I don't want to sell this property to that fraud person. What can I do ?