MATHURA : To contain the spread of COVID-19 cases in rural areas of Mathura, an 'Oxygen on Wheels' programme was flagged off in the district on Tuesday for prompt supply of the life-saving gas, a senior official said.The vehicles laden with oxygen cylinders were dispatched to the block headquarters on Monday evening to ensure oxygen supply for the needy from Tuesday morning.“It would not only reduce the surge of COVID-19 in rural areas of Mathura but mortality rate would also be reduced to an optimum minimum," Mayur Maheshwari, a senior Uttar Pradesh government officer and nodal officer of COVID-19 for Mathura, said on Monday evening after flagging off the vehicles to 10 block headquarters of Mathura and two areas falling under the.