Section 128(4) in The Delhi Municipal Corporation Act, 1957
(4)Every person who makes a transfer as aforesaid without giving such notice to the Commissioner shall, in addition to any penalty to which he may be subjected under the provisions of this Act, continue liable for the payment of all property taxes from time to time payable in respect of the land or building transferred until he gives such notice or until the transfer has been recorded in the Commissioner's book, but nothing in this section shall be held to affect the liability of the transferee for the payment of the said tax.