What it takes to find and fill an oxygen cylinder in Delhi – nothing less than nerves of steel What it takes to find and fill an oxygen cylinder in Delhi – nothing less than nerves of steel India’s second Covid-19 wave has overwhelmed hospitals and left families scrambling for life-saving oxygen for their loved ones. 5 hours ago Photo of a relative of a coronavirus patient with an oxygen cylinder in Ajmer, used for representation. | PTI On a sweltering May afternoon, Lalit Kohli stood in a queue outside the gate of an oxygen refilling plant in the industrial area of Mayapuri, West Delhi, lugging a 47-litre empty cylinder with him. He looked exhausted. He had just driven 110 km from Shamli, Uttar Pradesh.