My cousin sister eloped and got registered marriage with different cast boy both from Hindu community. Now She is claiming for grandfather's property. We suspect the boy is provoking for property and grandfather is not ready to share the property to anyone in the family propery is on grandfather name .
She has got no rights in her grandfather's property, if at all her father inherits any share in that property and if he dies intestate then she may claim a legitimate share in the property left behind by her father.
Her grandfather can refuse to allot her any share because he is not legally bound for that.
In addition my aunt (cousin sister mother) has built a house in grandfather's land with his approval but nothing on papers and for the construction of house the money was spent by my cousin sister.Does she has rights to claim the property ?
Your aunt should have got it transferred to her name by a registered document before starting the construction over the vacant land.
The oral permission will not stand in the court of law.
My Aunt is crying every day and wants to know if we can file any type of domestic violence case or any doubt on dowry harrasment case on the boy who eloped my cousin sister?
Your aunt cannot file any such case.