A field experiment was conducted during the summer seasons of 2016 and 2017 at Banka, (Bihar) to evaluate the effect of sowing dates and weed management on weeds and productivity of summer greengram (Vigna radiata L.). The experiment was laid out in a split plot design replicated thrice. Eleven weed species, viz. Cynodon dactylon, Dactyloctenium aegyptium, Digitaria sanguinalis, Panicum repens, Cyperus rotundus, Amaranthus viridis, Celosia argentea, Commelina benghalensis, Digera arvensis, Euphorbia hirta and Trichodesma indicum infested the greengram.Two hands weedings 20 and 40 days after sowing (DAS) recorded the lowest weed density and biomass which was significantly superior over rest of the weed management treatment. Pendimethalin (1000 g/ha) 2 DAS fb one hand weeding at 20 DAS gave significantly higher plant height, pods/plant, seeds/pod and seed index, higher seed yield, maximum net returns and B:C ratio and was found at par with two hands weeding at 20 and 40 DAS. Pendimethalin (1000 g/ha) 2 DAS fb 1 hand weeding at 20 DAS recorded the highest nutrient uptake N, P and K and was at par with of pendimethalin (1000 g/ha) 2 DAS during both years of experimentation.