A day after putting a ban on the use of liquid oxygen for non-medical purposes, the government on Monday allowed three sectors -- ampules and vials, pharmaceutical and defence forces -- to use the commodity.

Union Home Secretary Ajay Bhalla had on Sunday imposed a ban on the use of liquid oxygen for non-medical purposes, amid a scarcity of medical oxygen in many parts of the country, particularly in Delhi, that have been hit by a fresh wave of the coronavirus pandemic.