From the Summary: "In 1998, India and Pakistan each conducted tests of nuclear explosive devices, drawing world condemnation. The United States and a number of India's and Pakistan's major trading partners imposed economic sanctions in response. Most U.S. economic sanctions were lifted or eased within a few months of their imposition, however, and Congress gave the President the authority to remove all remaining restrictions in 1999. [...] Today, the United States imposes no economic sanctions against the governments of Pakistan or India."
CRS Report for Congress, RS20995