📓 Availability of required quantity of fish seed of desired species is one of the most important pre- requisite for successful fish farming. The widely cultured Indian major carps in inland waters like Calbasu (Labeo calbasu) normally do not breed in confined waters. The experiment was conducted to study the induced breeding of Labeo calbasu using synthetic hormone (Ovaprim). Induced Breeding is an artificial scientific technique whereby ripe fish breeders are stimulated by careful and intentional environmental manipulation. Induced breeding required an integrated system unit of different physical and biological facilities. These requirements are possible to fulfill by establishing a hatchery. Therefore, it is essential to develop the breeding technology of Labeo calbasu through proper dose optimization of synthetic hormone treatment for future development.