(3)Any contract made in respect of the affairs of the Federation or a Province by or on behalf of the Secretary of State after the commencement of Part III of this Act may provide that any proceedings under that contract shall be brought in the United Kingdom by or against the Secretary of State and any such proceedings may be brought accordingly, and any sum ordered to be paid by the Secretary of State by way of debt, damages or costs in any such proceedings, and any costs or expenses incurred by the Secretary of State in or in connection therewith, shall be paid out of the revenues of the Federation or the Province, as the case may be.