In the present study, maize genotypes were evaluated during rabi 2008-09 at the Research Farm of Institute of Agricultural Sciences, Banaras Hindu University, Varanasi. The objective was to investigate correlation between grain yield and other agronomic parameters using 37 inbred lines. The phenotypic correlation coefficient revealed that yield per plot had highest significant and positive correlation with grain yield per plant (0.999), followed by ear height (0.820), plant height (0.809) and cob length (0.510). Days to 50 % tasseling exhibited positive and highly significant correlation with days to 50% silking (0.874) and days to 75 % brown husk (0.642). However, days to 50% tasseling (-0.214), days to 50% silking (-0.287) and 75% brown husk (-0.196) were negative correlation with grain yield but only days to 50% silking showed significant negative association. Relatively higher magnitude of the genotypic correlation coefficient than the phenotypic correlation coefficient was noted for the all the traits.In path coefficient analysis the highest direct effect on grain yield per plot was exhibited by yield per plant (0.99297) followed by cob length (0.00826) and days to 50% tasseling (0.00635). Days to 50% tasseling (-0.00238), days to 75% brown husk (-0.00149), plant height (-0.01630) and 100-kernel weight (-0.00405) showed negative direct effect on grain yield. Ear height had highest indirect effect on grain yield via yield per plant (0.81839) followed by plant height (0.81220) via same character. The combination of traits such as days to flowering, cob length, ear height and 100 kernel weight could be used as target traits for improvement for high grain yield.