Besides, muted spot demand from consuming industries fuelled the downtrend.
At the Multi Commodity Exchange, copper for delivery in June shed Rs 3.75 or 1.20 per cent to Rs 308.75 per kg in a business turnover of 1,863 lots.
Similarly, the metal for delivery in far-month August contracts traded lower by Rs 3.80 or 1.20 per cent to Rs 313.10 per kg in 139 lots.
Analysts attributed the fall in copper futures to weak trend in global markets after copper and other industrial metals retreated as Chinese manufacturing data painted a picture of lackluster growth in the world's second-largest economy and weak demand at the domestic spot markets.