The Narmada river is suffering from the effects of having several dams on its course. This ecological loss is rapidly affecting the breeding and nursery grounds for freshwater and marine fish. The current riverine fishery is below subsistence level with an average yield of 0.3 tonne per km, which is about 15% of their actual potential. This is a matter of serious concern. The Narmada River is the fifth longest in India. It’s already been dammed in several places but the main dam, the Sardar Sarovar is close to the Sea. The Narmada River is the fifth longest in India. It’s already been dammed in several places but the main dam, the Sardar Sarovar is closet to the Sea. In the river Narmada carps should be in major quantity but in spite of that data’s are reflecting that the No. of cat fishes are increasing rather than the carps. Therefore fish species and Ecological condition of our area is being changing. No. of species are decreasing it mean’s species diversity in the descending order.