The expenses of the Federal or a Provincial Public Service Commission, including any salaries, allowances and pensions payable to or in respect of the members or staff of the Commission, shall be charged on the revenues of the Federation or, as the case may be, the Province.

Provided that nothing in this section shall charge on the revenues of a Province any pension which is by virtue of the provisions of chapter II of this Part of this Act charged on the revenues of the Federation.