Legal remedy in case of loss of property documents

We lost our property paper and the papers which we lost on name of my grandfather father name now my grandfather's father's is no more its so long so we didn't have his death certificate and my grandfather's also death so basically now we want to make new papers On my father's name what to do .only now we have only one proof of property is light bill which is on my father's name so plz tell me what to do ?