Pakistani rupee strengthened against the US dollar in the interbank for the second straight day and gained 38 paisas on Friday. According to a tweet of the State Bank of Pakistan, the US dollar was opened at Rs166.21 and closed at Rs165.83. Pakistani rupee gained Re0.14 against the US dollar during this week. Meanwhile, the foreign reserves of the country stand at $19.96 billion as of September 04, 2020, said State Bank of Pakistan (SBP) in another tweet.