Marketmen said that widening of positions by participants, tracking a firm trend at the spot markets on rising demand from paint and other consuming industries, influenced castorseed prices at futures trade here.
At the National Commodity and Derivative Exchange, castorseed for delivery this month surged by Rs 18 or 0.45 per cent to Rs 3,950 per quintal, with an open interest of 20,630 lots.
Also, most-active delivery in March was trading higher by Rs 17, or 0.42 per cent, to Rs 4,004 per quintal, clocking an open interest of 38,640 lots.