Performance of 12 rice hybrids in respect of grain yield and other characters was evaluated under five environments in Maharashtra during wet season 1999. Variation due to genotype (G), environments (E) and G x E interaction was highly significant in all the traits. Stability parameters X , bi and S²d were estimated for yield and other characters. By regression model, it was revealed that stability in yield of the hybrid appeared to differ in respect of level of stability in the component traits. It was found that stability in grain yield was due to stability in yield components only and plasticity in others. This pattern of stability and plasticity in component traits differ from hybrid to hybrid. Sahyadri hybrid may be rated as most promising hybrid under favorable environment.