The automobile industry urged the government to postpone the implementation of Bharat Stage IV emission norms, scheduled to be in force in 11 cities across India from April 1.There is serious concern that upgraded fuels may not be available in all parts of the country and would be difficult for vehicle makers to revert to the older emission norms. According to the
schedule, 11 cities will move to Bharat Stage IV norms on April 1, while rest of the country will upgrade to Bharat Stage III norms. Engines confirming to the new emission standards will require upgraded fuel.