Abstract: An experiment was designed and carried out to assess the growth responses of Heterobranchus bidorsalis fingerlings fed graded levels of toasted Vigna subterranean based diets with the aim of establishing the best inclusion level of Bambara groundnut seed meal. Ground decorticated toasted Bambara groundnut (BG) was incorporated as a non-conventional feedstuff at 0%(T1); 10% (T2); 20% (T3); 30% (T4) and 40% (T5) level of replacement for Soyabean for treatment one to five respectively.