Right of girl in his dead fathers property

My self poonam, my father expired before my marriage,my father have 3 more brothers. i am only child of my father, after death of my father ,my mother married with my uncle. total ancestral property are 4 acre. after my marriage they did not give any part of my property. i want to know how much part of total property i claimed. am i eligible for total property of my father?? *my grand father and grand mother also alived. what are the role of my grandfather & grand mother in perseptive of my property Right???