Paternal and ancestral property rights for daughters

This is regarding a paternal property case. We have a house and some ancestral property. My grandparents have 3 children, 2 sons (including my father) and one daughter. My father passed away in 1994. My father had 3 children. Son (eldest) and two daughters including me. Recently my grandfather sold off the ancestral property and diveded the returns in 3 parts - one for himself and for my brother and uncle. They gave nothing to my aunt (Bua) or my widow mother. The ownermship of house also was transferreed to my brother and Uncle. My sister, mother. Aunt and me were given no share. We want to claim our rights and get the rightful share in the property. Please suggest.