The bionomical study is important for the successful management and conservation of a natural population. The research carried out the significant relationship among different body length parameters and seasonal growth curves to asses the growth variation of the population of Notopterus notopterus. The species showed female dominating distribution including homogeneity in yearly distribution. The condition factors showed variation in growth patterns indicating gradual development of gonad in relation to the sexual cycle. The fish is carnivore and feeds on a large variety of food...