Can my sisters claim in our father's property ?

Hello Sir , My religion is Hindu.I have 2 sisters and 1 brother.My father was died before 2005.My mother is alive.My both sisters are married.Now we are going to sell our father’s property but my both sister’s want equal share from this property…but I don’t want give her equal share because both sister are all set , one sister is Lawyer and another is Teacher and also both background are good.I need money for higher study of my children.But they are not signe in my father property when we going to sell it. So can I do case on her ? What will do if I file case ? What says law about this ? What can I do in this case ? Respected Sir , please give reply as soon as possible. Thank you !