India, April 27 -- While the United States rolled out a full range of support for India's battle against Covid-19, it remained non-committal to on its position on India's joint proposal with South Africa at the WTO to grant a temporary waiver of intellectual rights to vaccines and therapeutics to ensure they are freely accessible around the world.

But India and South Africa are not giving up. Their ambassadors to the United State met Monday with a senior member of the US congress to argue their case, and to tap into and broaden support for their case among lawmakers.

Indian Ambassador to the US Taranjit Singh Sandhi tweeted Monday that he and his South African counterpart, Ambassador Nomaindya Mfeketo, met with Congresswoman Karen Bass,...