Where lands, buildings, or hereditaments are occupied for

156. Where lands, buildings, or hereditaments are occupied for public purposes by or on behalf of the Federation, a State or a public authority, the Federation, State or public authority shall not be liable to pay local rates in respect thereof but shall in aid of those rates make such contributions in respect thereof as may be agreed between the Federation, State or public authority, as the case may be, and the authority levying the rates or as may in default of agreement be determined by a tribunal consisting of the chairman of the Lands Tribunal established under Article 87, who shall preside, and two other members of whom each of the parties concerned shall appoint one. Delegation of State functions to another State