Sanction accorded under mis-representation

If at any time after the sanction for any building or work has been accorded, the Municipal Commissioner or Chief Officer is satisfied that such sanction was accorded in consequence of any material misrepresentation or fraudulent statement contained in the notice given or information furnished under section 187, he may by order in writing cancel such sanction for reasons to be recorded in writing and any building or work commenced, erected or done shall be deemed to have been commenced, erected or done without such sanction: Provided that before making any such order the Municipal Commissioner or Chief Officer shall give a reasonable opportunity to the person affected to show cause as to why such order should not be made.