(1) WE reserved judgment in these matters on 24/04/1992. We heard learned counsel for the parties at considerable length for several days. We have been taken through the provisions of the Delhi Development Act, 1957, Master Plan for Delhi published in the Gazette of India dated 1/08/1990, the Delhi Development Authority (Zoning) Regulations, 1983, the Delhi Municipal Corporation Act, 1957, the Faridabad Complex Administration (Regulations and Development) Act, 1971, the Development Plan for the Faridabad-Ballabgarh Controller Areas published in the Haryana government Gazette dated december 17, 1991, the Air (Prevention and Control of Pollution) Act, 1981, the Environment (Protection) Act, 1986, the National Health Policy, 1985, the Ancient Monuments Act, 1958, the National Capital Region Planning Board Act, 1985 and various other documents including reports of the Experts on air pollution and environments. The parties have submitted detailed written arguments which we have taken into consideration. We have given our thoughtful consideration to the various arguments advanced by the learned counsel for the parties.

(2) WE are conscious that environmental changes are th