Inherited property

My Father died in 1998 and my grandfather died in 2000 .My grandfather were shop in batala punjab .My Father was elder he had 4 brother and two sisters. My father was working in govt job Chandigarh and he retired in 1996. My father has not taken any property from his father. My two Chacha has taken some property 30 years back but not transferred in his name till today.now my 3rd Chacha is living and doing work in shop .which is in his possession that property is of my grandfather s Father. My Chacha transfer property in name of all four brothers in 2013.Now it come to my notice that the share of my Father is also in it.I told the Patwari to transfer the share of my father in our family name .He transfered the share in our name.I told the Chacha to give us our share but he is not ready to give us our share. It is come to my notice that Chacha had transferred 80%share of the unit the length of the property was 20'x158' from which he had transferred in his children s name particular front of the property 20'x122'.in which my father share was .Now how the department can do this property in his name .when he the property is not takseem in all of us.Give me sugesstion what can I do .