(1) The liability of the common carrier for loss of, or damage to any consignment, shall be limited to such amount as may be prescribed having regard to the value, freight and nature of goods, documents or articles of the consignment, unless the consignor or any person duly authorised in that behalf have expressly undertaken to pay higher risk rate fixed by the common carrier under section 11.
(2) The liability of the common carrier in case of any delay up to such period as may be mutually agreed upon by and between the consignor and the common carrier and specifically provided in the goods forwarding note including the consequential loss or damage to such consignment shall be limited to the amount of freight charges where such loss, damage or delay took place while the consignment was under the charge of such carrier:
Provided that beyond the period so agreed upon in the goods forwarding note, compensation shall be payable in accordance with sub-section (1) or section 11:
Provided further that the common carrier shall not be liable if such carrier proves that such loss of, or damage to, the consignment or delay in delivery thereof, had not taken place due to his fault or neglect or that of his servants or agents thereof.