Section 6(1) in The Kerala Buildings (Lease and Rent control) Act, 1965
(1)When the fair rent of a building has been fixed under this Act, no further increase in such fair rent shall be permissible except in cases where some necessary addition, improvement or alteration has been carried out at the landlord's expense,Provided that the fair rent as increased under this sub-section shall not exceed the fair rent payable under this Act for a similar building in the same locality with such additional improvement or alteration and it shall not e chargeable until such addition, improvement or alteration has been completed.Provided further that any dispute between the landlord and the tenant in regard to any increase claimed under this sub-section shall be decided by the Rent Control Court.
