The rupee firmed up by 15 paise to 44.63 against the US dollar in the early trade today due to fresh selling of dollar by banks and corporates in view of weakness of the greenback in the overseas markets.

In an active trade at the Interbank Foreign Exchange, the domestic unit opened higher at 44.64/65 per dollar against last week-end level of 44.78/79 per dollar and hovered in a range between 44.63 and 44.70. At 10.30 a.m., the rupee was quoting at 44.67/68.

Fresh selling of dollar by banks and corporates on the back of dollar’s weakness in the global markets mainly boosted the rupee value against the dollar, a forex dealer said.

The dollar gave up some of its recent gains against the euro in the Asian trade today as investors fretted less about the possibility that Greece would withdraw from the euro zone.