(1)There shall be deemed to be owing from the Authority to the Federation such sum as may be agreed or, in default of agreement, determined by the Governor-General in his discretion, to be equivalent to the amount of the moneys provided, whether before or after the passing of this Act, out of the revenues of India or of the Federation for capital purposes in connection with railways in India (exclusive of Burma) and the Authority shall out of their receipts on revenue account pay to the Federation interest on that amount at such rate as maybe so agreed or determined, and also make payments in reduction of the principal of that amount in accordance with a repayment scheme so agreed or determined.For the purposes of this subsection, where the Secretary of State in Council has assumed or incurred any obligation in connection with any such railways, he shall be deemed to have provided for the said purposes an amount equal to the capital value of that obligations shown in the accounts of the Government of India immediately before the establishment of the Authority.Nothing in this subsection shall be construed as preventing the Authority from making payments to the Federation in reduction of the principal of any such amount as aforesaid out of moneys other than receipts on revenue account.