Daugthers rights in Self Acquired property of her father died in 1948

Facts:- 1) Father(my grandafather) expired in 1948,mother(my grandmother) died in 1988 daughter(my mother) is born in 1937 and she got married in 1958. She is still alive as on date. 2) It is a joint family property and suit was filed in 2008 for partition , the said property is not partitioned as on date by metes and bounds. The will is not registered and probated till date and stands challenged Is Daughter ( my mother ) entitled to equal share along with her brother( my uncle) if so under what provisions of law/with citations/commentary if any. The uncle is of the view since father(grandfather) has died in 1948 , HSA 1956 is not applicable Regards Atul