Adjustment of rents expressed in terms of the land-revenue

(1) Where the rent of a tenancy is the whole or a share of the land-revenue thereof, with or without an addition in money, kind or service, and the land-revenue of the holding in which the tenancy is situate is altered, a Revenue-officer having authority under section 56 of the Punjab Land-revenue Act, 1887 (XVII of 1887), to determine the land-revenue payable in respect of the several holdings comprised in the estate in which the tenancy is situate shall determine also the amount of the land-revenue of the tenancy, or the proportionate share thereof, payable by the tenant as rent. (2) Where an addition referred to in sub-section (1) is a percentage fixed with reference to the land-revenue of the tenancy, or the whole or a share of the rates and cesses chargeable thereon, or both, the Revenue-officer shall in like manner from time to time alter the amount of the addition in proportion to any alteration of such land-revenue or rates and cesses.