Abstract: Heterosis was estimated over mid and better parents, for yield and some important yield components in 20 crosses of wheat involving one local variety viz. Inq. 91 and four promising lines viz. 6039-4, 8284, 4943 and 4770. Grain yield per plant showed maximum heterosis over the mid parent (44.30%) followed by 1000-grain weight (28.65%), plant height (13.40%) and number of tillers per plant (12.23%). The maximum heterobeltiosis was recorded for grain yield per plant (34.54%), 1000-grain weight (23.52%), number of tillers per plant (11.20%) and plant height (6.60%).