What is Daughters right in property whether it is ancestral property.

I am staying with my mother from 16 to 17 yrs and take care of my ailing mother. My father gifted the property to his daughter in law without giving any knowledge to my mother. Now my mother expired and my father, brother, his wife, his son and daughter in law kicking me and my children out. My grand mother and grandfather and father were refugees of 1947. My father got a claim from govt and then purchased the house in 1958 and after 10 yrs he sold this house and purchased a plot with this money. My mother, my sister and me did labourious work in constructing the house. My grand father was trader and my father took all his money and throw him out from the house in 1958. Now all the members started harrasing us by different tricks. Is this property called ancestral? Can they illegally throw me out without filling a suit?