A number of people have died while waiting for oxygen, and more than 99% of all intensive care beds are full.
India is in the grips of a second wave of Covid infections and on Thursday recorded the highest one-day tally of new cases anywhere in the world.
The country has recorded close to 16 million confirmed infections.
There have been 314,835 new coronavirus cases in the past 24 hours, while deaths rose by 2,104.
