Section 183(2) in New Town, Kolkata Development Authority Act, 2007
(2)Relaxation, under sub-section (1), may also be extended,-(a)if special environment friendly measures are maintained in construction of building and dwelling houses;(b)if the system for using non-conventional energy is introduced;(c)if measures are taken for preservation of rain water and uses thereof;(d)for setting up of rehabilitation and resettlement colony; and(e)to the philanthropic institutions.