UPDATE on this situation: The US, EU, UK, and more have offered help! Oxygen and concentrators for immediate relief. And perhaps more importantly for the medium term, the US will undo the (effective) embargo on vaccine raw material export.
"The United States has identified sources of specific raw material urgently required for Indian manufacture of the Covishield vaccine that will immediately be made available for India."
"The United States has identified sources of specific raw material urgently required for Indian manufacture of the Covishield vaccine that will immediately be made available for India."