I had earlier contacted US Consulate in India to enquire about transiting via US and this is what they replied.
The President has issued five COVID-19-related proclamations to limit travel to the United States. These proclamations will remain in effect until terminated by the President. Entry of foreign nationals who were physically present within the following list of countries within 14 days prior to their entry or attempted entry into the United States is suspended, per Presidential Proclamations issued May 24, 2020:
The United Kingdom of Great Britain and Northern Ireland, excluding overseas territories outside of Europe
The Republic of Ireland
Brazil
The Islamic Republic of Iran
The 26 countries that comprise the European Schengen Area (Austria, Belgium, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, and Switzerland)
The People’s Republic of China, not including the Special Administrative Regions of Hong Kong and Macau
Please also bear in mind the following:
- The Presidential Proclamation suspends travel to the U.S. for any individual who has been physically present in one of the above listed countries within 14 days prior to their arrival in the United States.
- The suspension also applies to traveling through a U.S. airport.
- Transiting a country covered by the Presidential Proclamation, even without exiting the airport, counts as physical presence within that country.
The proclamations do
not apply to U.S. citizens, or to any alien who is:
- a lawful permanent resident of the United States
- a spouse of a U.S. citizen or lawful permanent resident
- a parent or legal guardian of a U.S. citizen or lawful permanent resident, provided that the U.S. citizen or lawful permanent resident is unmarried and under the age of 21;
- a sibling of a U.S. citizen or lawful permanent resident, provided that both are unmarried and under the age of 21;
- a child, foster child, or ward of a U.S. citizen or lawful permanent resident, or who is a prospective adoptee seeking to enter the United States pursuant to the IR-4 or IH-4 visa classifications;
- an alien traveling at the invitation of the United States Government for a purpose related to containment or mitigation of the virus;
- C (transit) or D (air or sea crewmember) nonimmigrants
- seeking entry into or transiting the United States pursuant to an A-1, A-2, C-2, C-3 (as a foreign government official or immediate family member of an official), G-1, G-2, G-3, G-4, NATO-1 through NATO-4, or NATO-6 visa;
- an alien whose entry would not pose a significant risk of introducing, transmitting, or spreading the virus, as determined by the CDC Director, or his designee;
- an alien whose entry would further important United States law enforcement objectives, as determined by the Secretary of State, the Secretary of Homeland Security, or their respective designees based on a recommendation of the Attorney General or his designee; or
- an alien whose entry would be in the national interest, as determined by the Secretary of State, the Secretary of Homeland Security, or their designees.*
- a member of the U.S. Armed Forces and spouses and children of members of the U.S. Armed Forces.