Marketmen said the rise in castor seed prices in futures trade was mostly attributed to building up of positions by participants, driven by strong demand from consuming industries at spot markets amid restricted supplies.
Besides, surging export demand too influenced castor seed prices in futures trade.
At the National Commodity and Derivative Exchange, castorseed for delivery in August contracts was trading higher by Rs 75 or 1.65 per cent to Rs 4,310 per quintal, having an open interest of 21,830 lots.
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