Granddaughter rights in ancestral property if father is not alive on 9.9.2005

We are a hindu family. My grandfather left property in his name at Delhi, wherein the price of the property was partly paid from claim made by him for property left by him and his father in Pakistan before partition. My grandfather had willed the property to his sons in 1987. My grandfather and his sons passed away before 9 Sep 2005 . Please advise. 1. If the married granddaughters of my grandfather have right to the ancestral property. My grandfather and his sons had died before 9 Sep 2005 when supreme court had granted right to daughters in ancestral property. 2. A mutual settlement in the family with respect property distribution was recorded in High court of Delhi in 2017 giving equal right to the married granddaughters of my grandfather under misconception that granddaughters have equal rights even if their father was not alive as on 9 Sep 2005. Is the settlement valid for mutation and sale of property and enforceable under law?