The work revealed that, the treatment (T₈) i.e. Weed free recorded lowest weed count at 60 DAS and lowest weed index at harvest. Which was followed by the treatment (T₄) Pendimethalin 30% EC @ 1kg a.i./ha (PE) + Imazethapyr 10% SL @ 100g a.i./ha (PoE). Highest weed control efficiency was recorded in weed free plot (T₈) i.e. 96.57 per cent followed by treatment (T₄) Pendimethalin 30% EC @ 1kg a.i./ha (PE) + Imazethapyr 10% SL @ 100g a.i./ha (PoE) 78.00%. Highest weed count and weed index (36.95%) were recorded in weedy check (T₇) which were significantly superior over rest of the treatments. Highest net monetary returns and gross monetary returns were obtained due to (T₈) weed free plot i.e. ₨. 35973 ha^-1 and ₨.70315 ha^-1.

Study revealed the superiority of treatment weed free (T₈) in case of effective weed control in order to achieve higher GMR, NMR, B: C Ratio and suggesting the positive benefits of weed management which indirectly influences the yield of soybean.