Marketmen said increased bets by investors on back of a spurt in demand for paint, soap and lubricant industries amid thin supplies from growing belts in spot markets led to the uptick in castor seed futures prices.
At the National Commodity and Derivative Exchange, castor seed delivery for February contracts shot up by Rs 65, or 1.60 per cent, to Rs 4,136 per quintal, clocking an open interest of 2,680 lots.