The case of A.P. Pollution Control Board v. Prof. M.V. Nayudu (Retd.) & Others revolves around the setting up of a castor oil derivatives manufacturing unit by M/s. Surana Oils ... and Derivatives (India) Ltd. in Peddashpur village, Andhra Pradesh. The site proposed was within a radius of 10 kilometers from the Himayat Sagar and Osman Sagar lakes, which are the main sources of drinking water for Hyderabad and Secunderabad. In view of environmental considerations, especially the likelihood of these vital water reservoirs getting polluted, the Andhra Pradesh Pollution Control Board (APPCB) rejected the application of the company for a No Objection Certificate.