The Pakistani rupee strengthened against the US dollar, appreciating 0.06% during the opening minutes of trading in the inter-bank market on Tuesday. At 10:05am, the local currency was hovering at 280.15, a gain of Re0.16 against the greenback. On Monday, the local unit closed at 280.31. Internationally, the US dollar sagged to near a two-month low at the start of the Asian trading session o