(4)If any passenger liable to pay the excess charge and the fare mentioned in sub-section (1), or the excess charge and any difference of fare mentioned in sub-section (2), fails or refuses to pay the same on a demand being made therefor under one or other of these sub-sections, as the case may be, any railway servant authorised by the railway administration in this behalf may apply to any Metropolitan Magistrate or a Judicial Magistrate of the first or second class, as the case may be, for the recovery of the sum payable as if it were a fine, and the Magistrate if satisfied that the sum is payable shall order it to be so recovered, and may order that the person liable for the payment shall in default of payment suffer imprisonment of either description for a term which may extend to one month but not less than ten days.