Section 147(5)(a) in Government of India Act, 1935
(a)periodical contributions in acknowledgment of the suzerainty of His Majesty, including contributions payable in connection with any arrangement for the aid and protection of a State by His Majesty, and contributions in commutation of any obligation of a State to provide military assistance to His Majesty, or in respect of the maintenance by His Majesty of a special force for service in connection with a State, or in respect of the maintenance of local military forces or police, or in respect of the expenses of an agent ;