Sale issue on land brought by me

I and my relatives brought a land and registration was done. This land was previously owned by relatives. Current owner of the land is not my relatives. Before I brought, land owner plan to sell land to other buyer but my relatives not allowed the buyer to occupy the land because the owner don't have way to go into his farm. So, land owner filed a case against my relatives stating that the buyer paid 20L for land and he legal to cultivate the land. After 6 months owner reached me and relatives saying that he will sell the land to us because buyer was not able to pay the amount in estimated time. So, I brought the land. The previous buyer filed a case on land owner, me to cancel the registration saying that he paid advance to the land and tried to pay pending amount on time but he owner denied to accept the payment. He filed case by placing 1) evidence of advance payment of 2 lakhs rupees and cheque of 8 lakhs rupees but 8 lakhs rupees was not withdrawn till now because the cheque issue account has no money. 2) case filed copy showing 20 lakhs payment was done to owner, it is signed by owner. But owner claimed that 20 lakhs payment was not done. The FIR was filed against my relatives by not allowing the buyer to the land. My question Final judgement will favour me or previous buyer?