Climate Trends has compiled a report on the MPs statements and actions in the 14 cities listed as the most polluted by WHO in 2018. The report also shares the actions done in respective cities at national, sub-national and local level, statements by opposition leaders, including corresponding air quality averages in the last 5 years (where available). 
You can access the final materials here. The embargo lifts on Tuesday, April 9th at 12:01 AM IST.