in proceedings by or against a Government or a department of a Government, the Government or the department of the Government, as the case may be, shall not be required to pay any Court fees, but in case any decree, order or judgment shall provide that costs be paid by any party to the proceeding to such Government or such department of the Government, as the case may be, the amounts which would have been payable as fees but which for this proviso have not been paid, shall be payable by such party, as, when recovered, shall be paid to the Registry of the Court at which such decree, order or judgment was given. f. Manner of payment of fees (O. 91, R 2). The fees and percentage to be taken and paid under this Order shall be collected in such manner as the Chief Judge may from time to time direct.