If he does not take rent for 12 years then the law bars him to file eviction suit. However, otherwise also he can not you to leave for the reason that he is not receiving the rent as you have been living at that place since ages.
Keep the prove entact that you have attempted to pay the rent. Rest if he files eviction suit then you will have a good case to fight.
This is ancestral property of whom? I must tell you ancestral property is one which remains undivided for 4 generations. Therefore your uncles are not related to it in any ways.
Let me know if there happens to be any factual inconsistency in my advise.
Regards