Production of liquid oxygen increased by 10 times, Prime Minister Narendra Modi informed through his 77th radio session of ‘Mann Ki Baat’ on May 30. “The production of liquid oxygen has increased by 10 times. Our corona warriors are delivering them to every corner of the country. When the pandemic started, there were few tests everyday, but now there are around 20 lakh tests being conducted every day,” PM Narendra Modi said.