Besides, sluggish demand in the domestic spot market weighed.
At Multi Commodity Exchange, aluminium for delivery this month eased 55 paise, or 0.55 per cent, to Rs 100 per kg in a business turnover of 544 lots.
On similar lines, the metal for delivery in January next year contracts traded lower by 55 paise, or 0.54 per cent, to Rs 100.95 per kg in 63 lots.
Globally, aluminium sank 2.3 per cent at the London Metal Exchange (LME).