Castor seed prices drifted lower by Rs 37 per quintal in futures trade on offloading of positions by speculators amid a weak trend at the physical markets.
At the National Commodity and Derivative Exchange, castor seed delivery for the most-traded delivery in May declined by Rs 37, or 0.89 per cent, to Rs 4,114 per quintal, with an open interest of 66,770 lots.