In the currency market, the rupee ended firmer at 90.75/79 to the dollar, compared with Tuesday's close of 90.86/91 amid lack of import payments.
But dealers expect pressure on the local unit to continue due to rising international oil prices, which hit a nine-month high on Tuesday.
The rupee touched a record low of 91.28 to the dollar in January, pressured by worries about higher payments for oil imports and the country's overall economic health.
In the money market, overnight rates ended flat at 11.90percent, unchanged from Tuesday's close, because of a lack of liquidity in the inter bank market.
