The Indian rupee rose 2 paise to 66.48 against the dollar at the Interbank Foreign Exchange market in early trade on Monday, extending its winning spell for the fourth straight day, on increased selling of the US currency by exporters and banks amid sustained foreign fund inflows. Forex dealers said dollar's weakness against other currencies overseas supported the rupee. Besides, a higher opening in the domestic equity market influenced the rupee uptrend, they said. On Friday, the rupee had firmed up 25 paise to an over two-and-a-half month high of 66.50 a dollar on persistent selling of the American currency amid persistent foreign capital inflows. Meanwhile, the benchmark BSE Sensex regained the crucial 25,000-mark by surging 115.84 points, or 0.46 per cent, at 25,068.58 in early session on Monday.