The rupee firmed up 5 paise to 63.75 against the US dollar in early trade on fresh selling of the American currency by exporters and banks amid a firm domestic equity market.

Besides, dollar's weakness against some other currencies overseas and a strong domestic equity market supported the rupee, forex dealers said.

Yesterday, the rupee had retracted from its two-year high to close at 63.80, down 22 paise, after the four-day strong rally lost momentum on sharp recovery of the US currency.

Meanwhile, the benchmark BSE Sensex rose 70.10 points or 0.21 per cent to 32,343.77 in early trade.