Require Legal advise on agriculture Land sale deed.

Hi Team, About 13+ years ago, We brought 3 acres of agricultural Land through a Sale DEED. Land was brought in a Joint account with my uncle. During the purchase of the Land 13+ years ago I was a minor though in the sale deed it was mentioned as Major on broker's advise and done. I got to know from one of my friend that as per the law a minor cannot enter into a contract and the sale deed could become void as well. I tried to search and get some details regarding this over the internet but couldn't get any concrete advise which can resolve or ractify the issue. Note:- My Uncle who was a joint holder with me in sale deed and the seller both are passed away. Could you please help me with my below concerns:- 1. Is there any possibility that my sale deed can become void if anyone objects about me being a minor when entered into the contract? 2. How can this be corrected now ? 3. Does there any way forward exists to get all my documents corrected so there should not be any issues in future. Is yes, how? Kindly please help Regards, Gopi Krishnan