Field studies were conducted at Research Farm of CCS Haryana Agricultural University, Hisar, during Kharif 2006 and 2007 to find out the effect of sowing time (10th May, 25th May, 10th June and 25th June) and weed control measures consisted weedy, weed free, pendimethalin 1.0 kg/ha as pre-emergence (PE) fb  HW at 60 DAS, trifluralin 1.0 kg/ha as pre-plant incorporation (PPI)  fb  HW at 60 DAS and  HW at 30 and 60 DAS), in pigeonpea (Cajanus cajan L.). Results revealed that density and biomass of weeds increased with the corresponding advancement in crop growth and delay in sowing time from 10th May to 25th June. Pendimethalin 1.0 kg/ha as PE and trifluralin 1.0 kg/ha as PPI each followed by (fb) one hand weeding (HW) at 60 days after sowing (DAS) provided better weed control than  HW up to 60 DAS but at 90 DAS, these three treatments were statistically at par. Trifluralin fb HW had an edge over pendimethalin fb HW up to 60 DAS. In general, yield and yield parameters of pigeonpea were superior when crop was sown on 10th and 25th May compared to delay in sowing (10th and 25th June) during both the years. Performance of crop was similar when sown on 10th and 25th May. Among weed control treatments, trifluralin 1.0 kg/ha (PPI) fb 1 HW at 60 DAS, being at par with 2 HW, had an edge over pendimethalin 1.0 kg/ha (PE) fb 1 HW at 60 DAS in respect of yield attributes and ultimately yield of pigeonpea.