Zinc futures gained 0.51 per cent to Rs 99.45 per kg today, tracking a firming trend in other base metals.
Analysts said a better trend in the physical markets on the back of a pick-up in demand from consuming industries also influenced prices.
At the Multi Commodity Exchange counter, zinc for October contract delivery rose by 50 paise, or 0.51 per cent, to Rs 99.45 per kg, with a turnover of 659 lots.
Similarly, the metal for November delivery also edged up by 50 paise, or 0.50 per cent, to Rs 100.50 per kg, with a business turnover of 12 lots.
Analysts said a firming trend in base metals in global markets amid US dollar weakness mainly supported the upside in zinc futures here.
Meanwhile, the London Metal Exchange's index of six metals, including copper, today jumped by 1.1 per cent to its highest level since April.