At the Multi Commodity Exchange, zinc for delivery in January declined by 65 paise, or 0.36 per cent, to Rs 177.55 per kg, in a business turnover of 674 lots.
Likewise, the metal for delivery in February was down by 55 paise, or 0.31 per cent, to Rs 177.95 per kg in 12 lots.
Market analysts said zinc prices slide due to offloading of positions by participants amid tepid demand at domestic spot markets.