Market players attributed the downturn in prices to offloading of positions by traders to book profits at existing levels.
At the National Commodity and Derivative Exchange soybean for delivery in February contracts declined Rs 70, or 1.84 per cent, to Rs 3,741 per quintal, with an open interest of 2,02,510 lots.
Likewise, the delivery of March contract receded by Rs 59, or 1.53 per cent, to Rs 3,790 per quintal, with business turnover of 1,56,370 lots.