Studies on gene action, combining ability and heterosis of ten parents (six lines and four testers) along with their twenty-four hybrids for nine yield and plant related traits were conducted using line x tester mating pattern. Analysis of variance for combining ability revealed significant differences among the lines, testers, and their interactions for almost every trait except kernel L/B ratio and GCA/SCA variance showcased the preponderance of non-additive gene effects in case of all the analysed traits. The line parents BPT 5204, Co 51 and tester parents Navara and Neelam Samba were pinpointed as good combiners from gca effects. Amongst hybrids, BPT 5204 x Neelam Samba, ADT 39 x Karuppukavuni, Co 51 x Navara, and BPT 5204 x Navara demonstrated outstanding sca effects and heterosis over their better parents. Therefore, these hybrids were recommended to move on for further breeding approaches to enhance the grain yield together with earliness and non-lodging traits.