Section 345A(1) in The Delhi Municipal Corporation Act, 1957
(1)It shall be lawful for the Commissioner, at any time, before or after making an order of demolition under section 343 or of the stoppage of the erection of any building or execution of any work under section 343 or under section 344, to make an order directing the sealing of such erection or work or of the premises in which such erection or work is being carried on or has been completed in the manner prescribed by rules, for the purpose of carrying out the provisions of this Act, or for preventing any dispute as to the nature and extent of such erection or work.