MUMBAI, May 4 (Reuters) - India copper futures edged lower on Tuesday tracking weak overseas leads, but a weaker rupee kept the downside limited, analysts said. The most-traded copper June contract MCCM0 was trading 0.75 percent lower at 322.65 rupees per kg at 4:50 p.m., after hitting a low of 322 rupees earlier. "The strategy is to sell all base metals on rise, copper can see a downside till 318 rupees," said Pranav Mer, senior analyst with Mangal Keshav Commodities. London copper, which guides the domestic market, tumbled to two-month lows as the dollar rose against the euro and the market fretted about tightening in China, the world's largest consumer of industrial metals. [MET/L] Three-month LME copper MCU3=LX was trading 2.79 percent lower at $7,200.50 a tonne. The Indian rupee dropped further in afternoon trade as domestic shares fell more than 1 percent and the dollar continued to gain further versus major currencies overseas. [INR/] A weak rupee makes the dollar-quoted asset expensive. In other base metals, zinc May MZIK0 was trading 2.62 percent lower at 98.60 rupees per kg, while lead for May delivery MLDK0 was trading 2.49 percent lower at 95.80 rupees per kg. "Resistance at 101 (in zinc), prices may drift towards 100/99," said India Infoline in a report. "Zinc can come down to 97 rupees, while nickel to 1,120 rupees," said Mer. Nickel for May delivery MNKK0 was trading 2.07 percent lower at 1,147.50 rupees per kg.

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