The present study was conducted to assess the general combining ability effects of parents and specific combining ability effects of hybrids for yield and yield related traits and explore their use in hybrid development. 170 F 1 s generated by crossing thirty four lines with five testers were evaluated. The ratio of sca/gca variance revealed that there was preponderance of non additive gene action in the expression of all the traits under study. Inbred lines viz., MAI 708, MAI 109, MAI 111, MAI 121, Cymt 3 and Cymt 30 were good general combiners for yield and yield attributing characters. Tester CM 500 was high combiner for grain yield. Among the hybrids, MAI 109×MAI 105, MAI 109×CM 202, Cymt 30×NAI 137, Cymt 3×SKV 50 and Cymt 3×CM 202 exhibited highest significant sca effects and high heterosis over checks for yield and yield attributing traits.