Study of reproductive biology of fish is important for planning aquaculture for commercial point of view.Hill stream fishes are the indicators of ecology and any small change in habitat or on qualityof water may affect on population.Wild species of fishes play an important role in biodiversity and ecological status,many of them are inhabitantsof streams and torrential streams. Toconserve these wild species we must know theirbiology, food feeding habit, spawning, reproductive statergies adn reproductive biology.Due to construction of Dam for irrigation and hydroelectric power station. many of...