The Delhi government is set to implement the third phase of odd-even traffic rule from November 13 to 17, as the national capital faces an environmental emergency, state Transport Minister Kailash Gahlot said on Thursday."Air pollution in Delhi has crossed the severe level. That's why we are bringing back the odd-even scheme," Gahlot told media here.He said that modalities of the road rationing scheme are the same as before with similar timings and exemptions."We don't have a lot of time left to design the whole programme, hence we are going with the rules that were imposed in the previous two phases," he said.The Supreme Court appointed environment body EPCA and the Delhi Lt. Governor on Wednesday instructed the Delhi government to stay prepared to roll out the odd-even car rationing scheme, with air pollution levels rising alarmingly.