Further, pick up in export demand too supported the upside in prices.
At the National Commodity and Derivatives Exchange, castorseed for May month contracts gained Rs 31, or 0.83 per cent to Rs 3,778 per quintal, clocking an open interest of 42,450 lots.
On similar lines, most-active April month delivery contracts surged by Rs 29, or 0.79 per cent to Rs 3,716 per quintal, persisting an open interest of 1,57,490 lots.