(2)Notwithstanding anything contained in sub-section (1), where the consignor declares the value of any consignment at the time of its entrustment to a railway administration for carriage by railway, and pays such percentage charge as may be prescribed on so much of the value of such consignment as is in excess of the liability of the railway administration as calculated or specified, as the case may be, under sub-section (1), the liability of the railway administration for the loss, destruction, damage, deterioration or non-delivery of such consignment shall not exceed the value so declared.