Besides, pick up in export demand also supported the upside in castorseed prices.
Marketmen said expanding of positions by participants in tandem with a firm trend at the spot markets, led to the rise in castorseed prices at futures trade here.
At the National Commodity and Derivative Exchange, castorseed for delivery in June month rose by Rs 25 or 0.57 per cent to Rs 4,389 per quintal, having an open interest of 7,860 lots.
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