Need Info on claiming the property

Querist :
Anonymous
(Querist) 15 July 2011
This query is : Open
Hi,
My grandfather has two sons and one daughter. As of my knowledge ha has not shared the property b/w his sons. Nut during my aunts marriage he has given some property.
He was passed away after my fathers marriage (elder son). My father is not good with the family and he was addicted to drinking and passed away recently. As i came to know from others, they have divided the property when i and my sis was small(my mother doesn't know this). Bcoz of hid bad habbit he has given our part in shopping complex to his brother for some amount. Now, we have a house and 6 acres land. But, recently after me and my sis were majors, with out informing to us he sold 2 acres of his property to some one just for 1L. Now, i have the following queries:
1. Can we(grand daughters) have the rights on the entire property(our part)?
2. Can i file a case against the one who has bought 2 acres.
3.