Mumbai: The rupee fell marginally by 5 paise to 63.57 against the US dollar in early trade today on increased demand for the American currency from importers. The dollar strengthened against major world currencies which impacted the rupee sentiments, dealers said. Also, increased demand for the dollar from importers weighed on the local currency, but a higher opening in the domestic equity market capped the losses, they said. The rupee had ended lower by 13 paise at 63.52 a dollar yesterday on fresh demand for the American currency from banks and importers amdist fall in crude oil prices. Meanwhile, the benchmark Sensex gained 33.85 points, or 0.12 per cent, to 27,995.04 in early trade.