Castorseed prices recovered by Rs 23 to Rs 4,554 per quintal in futures trade on the back of covering-up of short positions at existing levels by speculators amid a rebound at physical markets. 
At the National Commodity and Derivative Exchange, castor seed for delivery this month improved by Rs 23 or 0.51 per cent to Rs 4,554 per quintal, with an open interest of 5410 lots.