Request for information on Married Daughter's Equal Right to Property

we are 4 sisters and 2 brothers. my father died in 1987 but my mother is still alive. we four sisters are married and are in the age group of 35-50 yrs. my father has left a lot of property, and my brothers want to sell them and share the money between them without consulting or including us. now my question is: do we 4 sisters have any claim in this property? if yes under which law, section etc. what should be the most peaceful legal channel to claim our right to our father's property in india? all we want is that the property be divided equally among 6 siblings ( sons and daughters). my mother is reluctant to give the property to us. she wants to give the entire property to our brothers. kindly advise what should we do!!!!