Oommen A. Ninan MUMBAI: Union Minister of State for Environment and Forest Jairam Ramesh on Sunday said a nation-wide Comprehensive Environmental Assessment found that 88 industrial clusters were critically polluted. Out of these 88 clusters, 8 are in Maharashtra including Tarapur and Chembur. The environment Ministry will not give clearance to any industry in these 88 clusters unless Action Plan is prepared and implemented to improve the environment in these areas, said Mr. Ramesh, while dedicating HPCL