Transfer Of 7/12 In Name Of Current Owner

I own a row house which was purchased back in 2010 in village - Ojhar dist. -Nasik( Maharashtra), this house has been registered and the copy of the sale deed is in my name also all property the taxes are in my name but the 7/12 extract of land is in name of previous owner. When I went to talathi to include my name in 7/12 extract he told me to get sign of previous owner on an application called as ( sahamati patra or agreement letter) that gives the previous owners approval to include my name in 7/12 extract, but the previous owner refuses to sign the document also I contacted my builder and he is also not cooperating. I have tried to convince the builder and the previous owner for last 3 yrs but now I am frustrated. so please tell me if there is any legal way to get this document signed through the court.