Abstract: Forty four genotypes of soybean (Glycine max (L.) Merrill] including indigenous germplasm of North East India were studied to evaluate genetic variation for seed yield and Yellow Mosaic Virus (YMV) resistance. All traits under study viz, Plant height (PH), Internodal length(IL), No. of trifoliate leaves plant-1 (TL), Pods plant-1 (PP), Seeds plant-1 (SP), 100-seed weight (SW), Pod weight (PW), Seed yield plant-1 (SY), Days to 50% flowering (DF) and Days to maturity (DM) exhibited wide variation among the genotypes. 100-seed weight exhibited highest coefficient of variance at both genotypic (GCV) and phenotypic level (PCV) followed by seed yield plant-1 and seeds plant-1 indicating wide variation among the genotypes under study. High heritability coupled with high genetic advance was observed in 100-seed weight, seeds plant-1, seed yield plant-1, plant height and pod weight plant-1 indicating their potential to be selected for the effectiveness of further improvement. Character association studies revealed significant and positive genetic correlation of seed yield plant-1 with pod weight plant-1 and 100-Seed weight. Screening for Yellow Mosaic Virus resistance revealed one highly susceptible variety viz. JS 335 and two highly resistant varieties viz.DS 9712 and DS9814.