Further, slackened demand from bulk consumers weighed on sweetener prices.
At National Commodity and Derivatives Exchange, sugar for delivery in October was trading lower by Rs 13, or 0.57 per cent to Rs 2,249 per quintal with an open interest of 39,150 lots.
Likewise, the sweetener for delivery in July contracts shed Rs 6, or 0.28 per cent to Rs 2,117 per quintal in 15,470 lots.
Analysts attributed sustained fall in sugar prices at futures trade to mounting stocks in the market following persistent supplies from mills.