Fresh selling of the US currency by exporters and banks has been touched off by weakness in the dollar overseas.
The forex market was shut yesterday on account of Eid-ul-Fitr.
On Friday, the domestic unit ended 7 paise higher at 64.52 following fresh bouts of dollar selling.
Meanwhile, the Sensex rose 156.75 points, or 0.50 per cent, to 31,294.96 in early session today.
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