Kejriwal in meeting with PM Modi: Oxygen tanker destined for Delhi being stopped in other states

In the PM's meeting with the Chief Ministers of the states, the Chief Minister of Delhi, Arvind Kejriwal said, At this time there is a huge crisis of oxygen in Delhi. I thank the Prime Minister for the Central Government for increasing the oxygen quota of Delhi, help us in bringing this increased quota to Delhi. Please suggest whom should I speak to in Central Govt when an oxygen tanker destined for Delhi is stopped in another state?