The rupee was trading strong at 66.31 against the dollar in the evening session on increased dollar selling by exporters and due to dollar's weakness against other currencies overseas.
Rising for the fifth straight session, the rupee gained 9 paise to 66.31 against the dollar in early trade at the Inter-bank Foreign Exchange market today.
It hovered in a range of 66.34 and 66.26 before being quoted at 66.31, up 9 paise at 4.15 pm local time.
The rupee had appreciated by a modest two paise to settle at 66.40 against the greenback on Friday. It had gained 69 paise in the past four trading sessions.
Meanwhile, the benchmark BSE Sensex ended higher by 216.68 points or 0.85 per cent at 25,735.90.