42. The Kartripakkha may frame schemes (herein called re-housing schemes) for the construction, maintenance and management of such and so many dwellings and shops as they may consider ought to be provided for persons of the poorer and working classes who- (a) are displaced by the execution of any improvement scheme sanctioned under this Act; or (b) are likely to be displaced by the execution of any improvement scheme which it is intended to frame, or to submit to the Government for sanction under this Act.