Daughter's right on ancestral property after recent Judgement ?

My grandfather has 2 son and 2 daughter, He died in 1969 without any will and the property was mutated jointly between my father and uncle name. In 1982 the property subdivided in individual name of my father and uncle. In 1996 one of the sister filed a suit for equal share in the said property and other sister given statement that she has nothing to do with the said property. Now it is almost 20 years passed but no judgement has come. So kindly guide me how the law applicable on our case.