Besides, pick-up in supplies in the physical markets from growing regions and slackened demand also weighed on sentiments.
At the National Commodity and Derivatives Exchange, soybean for delivery in January next year contracts was trading down by Rs 116 or 2.96 per cent to Rs 3,808 per quintal with an open interest of 50 lots.
The commodity for delivery this month too dropped by Rs 64 or 1.67 per cent to Rs 3,770 per quintal in an open interest of 2,430 lots.
Soybean for delivery in July also traded lower by Rs 62 or 1.59 per cent to Rs 3,828 per quintal, clocking an open interest of 83,970 lots.