Section 187(8)(b) in The Chhattisgarh Municipalities Act, 1961
(b)who is erecting such building or executing such work or has erected such building or executed such work on or before such day as shall be specified in such notice, by a statement in writing subscribed by him or by an agent duly authorised by him in that behalf and addressed to the Chief Municipal Officer, to show sufficient cause why such building or work shall not be removed, altered or pulled down; or