No ryot having a right of occupancy shall be liable to an enhancement of the rent previously paid by him except on some one of the following grounds, namely:---
    That the rate paid by him is below that prevailing in adjacent places.---That the rate of rent paid by such ryot is below the prevailing rate payable by the same class of ryots for land of a similar description and with similar advantages in the places adjacent.
    That the value of the land , &c., has increased independently of the ryot.—That the value of the produce or the productive powers of the land have been increased otherwise than by the agency or at the expense of the ryot.
    That the quantity of land held by the ryot is greater than he has paid rent for.—That the quantity of land held by the ryot has been proved by measurement to be greater than the quantity for which rent has been previously paid by him.