The rupee appreciated by 6 paise to 72.90 against the US dollar in opening trade on Thursday amid muted domestic equities.
At the interbank forex market, the local unit opened at 72.92 against the US dollar and inched higher to 72.90 in early deals, registering a rise of 6 paise over its previous close.
On Wednesday, the rupee had settled at 72.96 against the American currency.