Market players said, cutting down of bets by speculators in view of mounting stocks in the spot markets on relentless supplies from growing, mainly dampened trading sentiments here in future market.
Besides, muted spot as well as export demand kept traders on the sideline, they added.
At the National Commodity and Derivatives Exchange, guar gum for delivery in November dipped Rs 106, or 1.32 per cent, to Rs 7,951 per quintal, with an open interest of 13,875 lots.
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