Land Grabbing act by elder brother - Father & Mother gave the land to me(Daughter - 2nd)

Self acquired property - The land which was earned by my Father & Mother has been passed down to me(Daughter) by them. Other siblings got a share in Father's & Mother's property such as Elder brother got a house and a land, my younger sister got a house and a land, and our last brother got house and a land. I didn't got anything after marriage, but now my Mother and Father on their own will gave me some left over land which they kept to take care of themselves. Me and my sons are taking care of my Father and Mother, others after getting their shares left parents on their own. We gave a police complaint because they are creating problems to my Father and Mother who is now doing agriculture in my land since I asked them to do so. First time elder brother mentioned to police he will handle it on court & second time he mentioned he will discuss and sort this out with village elder members. He didn't took it to court and after discussing with village elders, my Father and Mother asked him to leave the house & the land which they gave it to him to get this land which is now under my name but he is refusing to do so. He is claiming that he worked and gave money to buy this land(under problem) but it is not true, since he is making this claim my Father and Mother asked him to give up the house and land which they worked & earned. Father's age : 93 Mother's age : 75 My health condition is not good and I do not want to extend this problem. Please advise me on how to resolve it immediately. Thanks in advance!!