I have a query with regards to a new property that I have purchased recently. It's only after purch

I have a query with regards to a new property that I have purchased recently. It's only after purchasing the property we came to know that the owners have not cleared many utility bills as yet (Gas connection, Electricity bill etc). These bill have been left unpaid since past couple of months. The sale deed clearly states that the owners are suppose to clear the bills but in spite of repeated verbal request from my end they refused to do so. I was forced to pay off the electricity bill as otherwise it would lead to disconnection. I have sent written letter to Mahanagar Gas Service also attached copy of Sale deed to permanently disconnect the gas connection line and adjust the outstanding payment amount against their security deposit of the previous owners but they have refused to do the needful and are asking me to follow up with the previous owners.

The previous owners are not willing to pay off the outstanding amount nor are they willing to get the gas connection disconnected. How do we sort out this issue? I do not want to pay the outstanding amount as it's not our fault and the house has been purchased by me just 10 days back. I have a copy of letter sent to Mahanagar gas for disconnection of line, Courier receipt and confirmation that Mahanagar Gas has received my letter and the docket no. raised by them as proof. Your kind advice will be highly appreciated.