The Indian national currency has fallen 15 paise to trade at 54.95 against the dollar, which is its lowest level in a month.

The rupee showed signs of weakness and touched just below the 55 mark this morning at the Interbank Foreign Exchange market as US dollar showed strengthen against other major currencies. Dealers have also said that the fall in rupee came after selling in commodities that was backed by a strong dollar.

The US dollar has touched its highest level in more than four years against the yen due to a revived investor confidence in the US economy. The world's largest economy has been showing signs of strong recovery with improvements in the jobs markets and a stable housing market in the US.

The rupee also faced pressure from an increased demand for the dollar from banks and importers and weak domes stock markets. The rupee had closed down by 55 paise at 54.80 on Friday, which was its lowest level this month due to high demand for the US dollar from importers.

Meanwhile, the benchmark BSE Sensex fell by 71.11 points to 20,051.21 in early trade today.