Aquatic habitat is one of the major natural habitats on earth. Water plays very crucial role in cycling the various inorganic and organic substances required to perform and sustain life on earth. For last few years environment is highly polluted by many pollutants that affect our fresh water bodies. Bhavani River is one of the vital River in Tamil Nadu. A study has been undertaken to analyze the water quality of Bhavani River, because many industries mainly Textile, Tanneries, Sugar factories are situated on the Banks of Bhavani River. The untreated effluents were let out into the river which is the main cause for pollution of water. The pollutant from the Industries, Agricultural runoff and domestic sewage has the histopathological effects of heavy metals on bioaccumulation of fishes in the river. As result water borne diseases have become common in the area and it water cannot be used by human beings also. In order to rectify study was done to analyze the physicochemical parameters.