Levy of penalty in certain cases

If any person after purchasing any goods in respect of which he has made a declaration fails without reasonable excuse to make use of the goods for the declared purpose, the assessing authority may, after giving him a reasonable opportunity of being heard, by order in writing impose upon him by way of penalty, double the amount of tax payable on the turnover relating to the sale of such goods at a rate which is equal to the rate prescribed in the Schedules less the tax already paid on such turnover: