Four strains CB-35, CB-212, CB-214 and CB-219 and one commercial variety Miraj-2008 were used as lines (female parents). Two land races LR-01 and LR-02 were used as male parents (testers) design. Line x Tester used in order to estimate the combining ability and genetic components for its important traits. Miraj-2008 proved to be a good general combiner for all traits under study except grain weight per spike. Estimates of variances due togeneral combining ability (GCA), specific combining ability (SCA) and GCA/SCA ratio indicates that traits showed under control of additive gene action which is good for selection and varietal development. The cross-combination CB-214 x LR-02 exhibit good SCAfor number of tillers per plant and days to 50% headings. Both traits contribute to ultimate grain yield. Cross CB-212 x LR-02 possess highest value of SCA for days to taken for anthesis. CB-219 x LR-1 and CB-214 x LR-02 are good specific combiners for days to maturity and grain weight per spike. It is expected that these cross combinations will yield transgressive segregates.