At the National Commodity and Derivatives Exchange, sugar for delivery in far-month July rose by Rs 11, or 0.31 per cent to Rs 3,546 per quintal with an open interest of 53,580 lots.
The sweetener for delivery in May contracts, however, held steady at Rs 3,358 per quintal in 2,100 lots.
The rise in sugar prices at futures trade was mostly attributed to widening of positions by participants, triggered by seasonal demand from bulk consumers in the spot markets, traders said.