Castor seed prices rolled down by Rs 34 to Rs 4,426 per quintal in futures trade on trimming of positions by the participants amid weak physical markets.
Marketmen said cutting down of bets by the participants in view of falling price at spot markets, mainly led to fall in castor seed futures prices.
In spot markets, withdrawal of support by the soap, paint and lubricant industries amid uninterrupted arrivals from growing belts kept the prices under pressure.
