Section 37(8)(a) in THE UTTAR PRADESH AVAS EVAM VIKAS PARISHAD ADHINIYAM, 1965
(a)if any work of improvement has been executed in relation to the building, an annual rent of a sum equivalent to the aggregate of the following amounts, namely:(i)the annual rent the tenant was paying immediately before the vacated the building for the purpose of execution of the work improvement;(ii)six per cent. of the cost of the work of improvement; and(iii)six per cent, of the cost of any land which may have been acquired for the purpose of effecting such improvement;