Section 46(1)(c) in Puducherry Town and Country Planning Act, 1969
(c)that any building or work should be altered or removed; the Planning Authority may, by notice served on the owner(i)require the discontinuance of that use, or(ii)impose such conditions, as may be specified in the notice on the continuance thereof, or(iii)require such steps, as may be specified in the notice to be taken for the alteration or removal of any buildings or work, as the case may be, within such period, being not less than one month, as may be specified therein, after the service of the notice.