I entered into a contract to purchase about 50 acres of land (with a transaction value of about 1 crore). Upon the insistence of the seller I paid about 50% of the total amount as advance and got the sale agreement registered. A couple of documents were missing at the time of sale and the seller assured me he would get all the documents in place before finalizing the transaction. It has been close to 5 years now and despite his best efforts he has not been able to procure the documents. As such there was no time limit specified in the contract.
So far, I had given him the benefit of the doubt, but now I would like to get the advance money returned and the get the sale agreement cancelled. Upon my demanding the return of the advance, the seller is requesting about 1 year time to return the money (most likely he has spent it all) or the same time to fulfil his sale obligations. How can I get my money back? Also, can I demand interest to be paid on it? Under what conditions can I demand interest payment on the substantial sum of advance I have paid? Please help.