Is black marketing behind the shortage of oxygen in Delhi?

In such a pandemic, some people are not leaving any chance to earn money. Black marketing of medicines, oxygen going on all over the country. Earlier oxygen concentrators racket busted in Khan Chacha Restaurant. The owner of the restaurant, Navneet Kalra is absconding and the crime branch investigating the case is raiding from place to place to find him. Now the question arises that is black marketing the reason behind the shortage of oxygen in Delhi.