Amid coronavirus second wave, the state capital Delhi witnessed over 400 Covid deaths in the last 24 hours due to lack of oxygen. The city hospitals are already grappling with the shortage of medical oxygen, now they have been overwhelmed. The hospitals are continuously asking for help from the central or Delhi governments for oxygen supply. At present, Delhi needs 976 tonnes of oxygen and with time the demand will increase in view of the situation. See what medical experts have to say on this.