The rupee appreciated by 22 paise to 73.15 against the US dollar in opening trade on Wednesday, supported by positive domestic equities and sustained foreign fund inflows. At the interbank forex market, the local unit opened at 73.26 against the US dollar, then inched higher to 73.15 against the greenback, registering a rise of 22 paise over its previous close.

On Tuesday, the rupee had settled at 73.37 against the American currency.

The Indian rupee started this Wednesday on a stronger note against the US dollar supported by improving risk appetite in the regional currencies and equities on optimism over the economic outlook, Reliance Securities said in a research note.