Indian mustard is the most extensively cultivated oilseed crop in India, which has a very significant nutritional and economic value. Understanding the genetic mechanisms is important for developing high yielding varieties, mainly the ones governing traits like seed yield. The material was estimated in a Randomized Block Design (RBD) with three replications, and data were recorded on 14 agronomic and quality traits.RH-0749, LAXMI, RL1359, RAJAT, and MAYA as superior general combiners, while hybrids RL1359 × RAJAT and RGN-73 × MAYA exhibited high specific combining ability based on the Combining Ability Analysis. Lower GCA variance than SCA variance and low predictability ratios implied the predominance of non-additive gene action, supporting the potential for heterosis breeding.