Right of daughter

sir,

       my mother father has 2 sons and 1 daughter.my mother married on 1987.my grand father having 20 acres

of land which was acquired by selling 4 acres of ancestral property.now my question is as per hindu

succession Act 2005 ,is my mother is eligible for the property of my grand father ?

2)Is there any latest supremecourt judgemebt on this issue ?

                                                                 kindly post the same

                                                                                                                           ssreddy