At the National Commodity and Derivative Exchange, castor seed to be delivered in March contract slipped by Rs 42 or 0.95 per cent to Rs 4,360 per quintal, with an open interest of 43,980 lots.
The delivery for the February month contracts also slipped by Rs 38 or 0.88 per cent to Rs 4,284 per quintal, clocking an open interest of 48,470 lots.
Marketmen said offloading of holdings by participants amid a weak trend at the physical markets due to sluggish demand from soap, paint and lubricant industries amid regular supplies, mainly led to the fall in castor seed futures prices.