Section 348(2) in The Delhi Municipal Corporation Act, 1957
(2)The Commissioner may also, it he thinks fit, require such owner or occupier by the said order either forthwith or before proceeding to demolish, secure or repair the building, to set up a proper and sufficient hoard or fence for the protection of passers-by and other persons, with a convenient platform and hand-rail wherever practicable to serve as a foot-way for passengers outside of such board or fence.