Market players said strong demand in spot markets mainly encouraged traders to build up positions.
At the National Commodity and Derivative Exchange, barley for delivery in October month contracts gained Rs 7.50 or 0.50 per cent to Rs 1,499 per quintal, with an open interest of 2,460 lots.
In contrast, delivery in far-month November contracts lost Rs 28.50 or 1.85 per cent to Rs 1,513.50 per quintal in an opening interst of 50 lots as traders cut down holdings.