Besides, strength in the US dollar against other overseas currencies and a lower opening in domestic equities also kept pressure on the domestic unit, dealers said.
Yesterday, the rupee ended lower by 4 paise, hitting 2-week low of 66.58 on fag-end dollar demand from banks and importers amid higher greenback in the global markets, despite a sharp recovery in domestic equities.
Meanwhile, the benchmark BSE Sensex fell by 34.71 points, or 0.13 per cent, to 25,654.15 in early trade.
PTI