1) purchase of land has to be only through registered sale deed to confer clear and marketable title to property
2)if only GPA has been executed in your favour by seller you dont have clear title to land .
3) SC has held that That GPAs are not valid transfers of ownership. Only registered sale deeds are.
4) But it’s not with retrospective effect; existing properties that have been purchased from a GPA holder (before October 11, 2011) won’t be affected. Even those who hold a GPA today can “regularize” it by converting it into a sale deed,