Marketmen said fresh buying support after yesterday's sell-off, mainly brought the prices in green zone.
At the National Commodity and Derivatives Exchange, castorseed prices for July contract rose by Rs 37, or 0.87 per cent, to Rs 4,281 per quintal, with an open interest of 78,120 lots.
Near-June contract advanced by Rs 34, or 0.82 per cent, to Rs 4,182 per quintal with an open interest of 96,930 lots.
Most active May contract also improved by Rs 33, or 0.81 per cent, to Rs 4,119 per quintal, showing an open interest of 1,13,680 lots.