Section 144B(b) in The Mumbai Municipal Corporation Act, 1888
(b)buildings constructed and wherein there is the component of the tenements constructed for project affected persons on plots allocated, designated or reserved in the development plan for Public Housing (PH) or High Density Housing (HDH, "Housing the Dishoused (HD), and are developed or redeveloped by the Corporation or public authority or the owner, where the owner is required under the scheme for" Housing the Dishoused" or under the scheme"Public Housing or High Density Housing" to hand over to the Corporation free of cost at least fifty per cent., or as the case may be, ten per cent. of the built up area for allotment to project affected persons or for rehabilitating the existing tenants on the plot or to both such persons or tenants; and to persons affected by the projects undertaken by the Corporation, respectively; or