On the Multi Commodity Exchange, gold contracts for the June delivery traded lower by Rs 134, or 0.28 per cent, at Rs 47,817 per 10 gram in a business turnover of 9,388 lots, silver contracts for the July delivery gained Rs 17, or 0.02 per cent, to Rs 71,561 per kg in 10,345 lots. Zinc contracts for the May delivery rose by Rs 1.40, or 0.6 per cent, to Rs 236.40 per kg in 2,399 lots, nickel contracts gained Rs 15, or 1.15 per cent, to Rs 1,324.70 per kg in a business turnover of 1,753 lots, aluminium contracts gained Rs 2.10, or 1.05 per cent, to Rs 202.90 per kg in a business turnover of 1,822 lots, copper contracts traded higher by Rs 6.10, or 0.77 per cent, at Rs 793.35 per kg in a business turnover of 4,285 lots.