Castor seed prices drifted lower by Rs 39 to Rs 4,142 per quintal in futures trade on liquidation of positions by the speculators in line with weak physical market.
At the National Commodity and Derivative Exchange, castor seed for delivery in March dropped Rs 39, or 0.93 per cent, to Rs 4,142 per quintal, with an open interest of 17,380 lots.