The US dollar gained 10 paisas against Pakistani rupee in the interbank on Monday. According to a tweet of the State Bank of Pakistan, the US dollar opened at Rs165.79 and closed at Rs165.89. Pakistani rupee gained 4 paisas against the US dollar during the last week. Meanwhile, the foreign reserves of the country stand at $19.90 billion as of September 18, 2020, said State Bank of Pakistan (SBP) in another tweet.