The Nigerian currency gained two points to exchange at N455 to a dollar, from N457 it posted on Wednesday, while the Pound Sterling and the Euro traded at N550 and N480, respectively.
At the Bureau De Change window, the Naira traded at N400 to a dollar, while the Pound Sterling and the Euro closed at N550 and N487, respectively.
Trading at the interbank segment of the market saw the Naira closing at N306.75 to a dollar.
Currency traders said that the boost in liquidity by the CBN had enabled the Naira to sustain its gain against the dollar at the FOREX market.
The CBN had sustained its intervention at the market to clear the backlog of genuine FOREX buyers.