Section 64(1)(h) in New Town, Kolkata Development Authority Act, 2007
(h)to convert into a stall, shop, office, warehouse or godown, workshop, factory or garage any building not originally constructed for use as such, or to convert any building constructed for such purpose by subdivision or addition, in greater or lesser number of such stalls, shops, Offices, warehouses or godowns, workshops, factories or garages;