Section 280(2) in The Bombay Provincial Municipal Corporations Act, 1949
(2)Before any area is declared to be a clearance area, it shall be the duty of Corporation to satisfy itself as to the sufficiency of its resources and to ascertain the number of persons who are likely to be dishoused in such area and thereafter to take such measures as are practicable whether by the arrangement of their programme or otherwise so as to ensure that as little hardship as possible is inflicted on those dishoused.