Forex dealers said a lower opening of the domestic equity market also weighed on the rupee but the dollar's weakness against some currencies overseas capped the fall.
The rupee had rebound from a 39-month low by rising 27 paise at 68.46 on Friday, supported by aggressive selling of the American unit by exporters and banks.
Meanwhile, the benchmark BSE Sensex fell 133.12 points or 0.50 per cent to 26,183.22 in early trade today.