The investigation, undertaken at the Kullursandai Dam between December 2023 and February 2024, sought to examine the physical and chemical properties of dam water and their association with fish body length and weight. The study also assessed the nutritional values, encompassing the carbohydrate rate and protein content, of the gill, skin, and muscle tissue of Oreochromis mossambicus and Labeo rohita. This research will offer advice for fishermen on the most cost-effective fish species and provide information on the growth and nutritional benefits of these species during the post-monsoon period.