The dollar's slide overseas amid concerns over renewed show of strength on the Korean Peninsula and a stronger opening of domestic equities took the rupee high.
On Friday, the rupee had retreated by 4 paise to end at 64.15 against the US dollar even as the greenback struggled to bounce back globally.
Meanwhile, the Nifty soared to a new high of 10,043.30 and the benchmark Sensex rose 133.05 points, or 0.41 per cent, to 32,442.93 in the opening trade.