Delhi Chief Minister Arvind Kejriwal has written a letter to Prime Minister Narendra Modi wherein he has thanked the Centre for providing over 700 MT of medical oxygen to the national capital amid soaring Covid-19 cases. Kejriwal has urged the Prime Minister to ensure a daily supply of 700 MT oxygen to the city. "Delhi has a consumption of 700 metric tonnes of oxygen on a daily basis. We have been urging the Centre on a regular basis to give us 700 metric tonnes. It was for the first time yesterday that Delhi received 730 metric tonnes," he said in the letter.