Copper futures for April fell by Rs 4.15, or 1.11%, to Rs 370.85 per kg in 19,590 lots.
At the Multi Commodity Exchange (MCX), the June contract traded lower by Rs 4.10, or 1.08%, to Rs 376.60 per kg in 2,083 lots.
Prices fell as speculators reduced their positions amid subdued domestic demand.
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Besides, subdued spot market demand also put pressure.
On the London Metal Exchange (LME), the three-month contract dropped as much as 1% to $6,868 per tonne.