Amid serious concerns over rising air pollution, Delhi Environment Minister Gopal Rai on Monday said that the odd-even rule will be brought back for a week, starting from November 13- 20 November to improve the situation and curb the declining air quality. Rai said this while addressing a press briefing that was held after Delhi Chief Minister Arvind Kejriwal chaired a high-level meeting with cabinet members and officials as the air quality dips further in the city.