Two isolates of Rhizobium were isolated from Babchi (Psorolea corylifolia) root nodules, which showed positive tests for catalase test, oxidase test, nitrate reduction test and starch hydrolysis while negative test for methyl red test, Voges-Proskauer test, urease test, gelatin lignification test, methylene blue test, urease test, gelatin liquification test, methylene blue test, lactose test, citrate utilization test and hydrogen sulphide production test. | Isolation and characterization of nitrogen fixing bacteria from babchi Psorolea corylifolia L. and testing them for plant growth promotion traits in vitro