Present paper deals ecological study of exotic fishes in Ranitalab Rewa district, Madhya Pradesh, during the period Nov. 2012 to Oct. 2013. Common carp, Silver carp, Grass carp and Tilapia were the most dominant species among all exotic fishes. Attempts were made to estimate the diversity of exotic fishes and their role in the ecology of the water bodies as a means of successful aquaculture practices. The topography of the Ranitalab is undulating type with hilly terrain around the pond. Plantation is over the earthen bund and slope of the bund with grass at the inner side of bund which is most important aspect for crossing the limnetic ecosystem. The scientific fishing was made trap and nets with the help of fisherman after the weight and length measurement fishes allowed back to the water body. Tilapia is showed positive correlation as compare to others fishes. It shows positive correlation with air, water temperature, conductivity, TDS, pH, Total alkalkinity, Chloride, Sodium, Potassium, Nitrate and Sulphate.