Dehradun: Uttarakhand minister Swami Yatishwaranand has asked officials to rope in sugar mills to start producing oxygen to augment the supply of the life-saving gas in view of the rising COVID-19 cases in the state.Two sugar mills in Hardiwar have already agreed to the proposal, the minister for sugarcane development and sugar industry said.In a letter to ministry secretary Chandresh Kumar, Yatishwaranand cited the example of Osmanabad in Maharashtra where an oxygen plant is being run at a sugar factory and asked him to start work in that direction in Uttarakhand too.The minister said he had spoken to the management of the Dharashiv Sugar Mill in Osmanabad and also collected information about a dozen sugar mills that are running oxygen.