The A.P. Pollution Control Board is directed not to allow the20 highly polluting industries which have been notified by the Central Government as falling within the purview of Industrial Licensing, to come up within the vicinity or catchment area of Durgam Cheruvu lake. The Metropolitan Water Supply and Sewage Board is directed to provide collection of sewage and treatment systems for the existing colonies in the vicinity of the upstream of Durgam Cheruvu lake in order to prevent flow of domestic and other forms of effluents into the Durgam Cheruvu lake. The Commissioner, Serilingampalli Municipality is directed not to permit any more residential colonies in the vicinity or catchment area of Durgam Cheruvu lake to come up and take immediate and necessary measures to prevent the discharge of sewage from the nearby colonies into the lake so as to protect the quality of the water in the lake. [ T.Ramakrishna Rao vs. Hyderabad Urban Development Authority. 2002 (2) ALT 193. Sinha C.J. & S.R. Nayak J.]