Mustardseed prices tumbled by Rs 109 to Rs 3,936 per quintal in futures trading today on reduced offtake by speculators after imposition of special margins by the authorities.
Marketmen said imposition of 10% special margins on long positions to curb unwanted volatility advised speculators to remain on sidelines.
At the National Commodity and Derivatives Exchange, the July delivery fell by Rs 109, or 2.69%, to Rs 3,936 per quintal, with an open interest of 22,300 lots.
The May delivery plummeted by Rs 101, or 2.57%, to Rs 3,823 per quintal, revealing an open interest of 208,760 lots.
Likewise, for delivery in April, the prices lost Rs 96, or 2.50%, to Rs 3,749 per quintal, with an open interest of 137,260 lots.