Centre directs state governments of Delhi, Rajasthan, Haryana and UP to improve air quality
![](http://admin.indiaenvironmentportal.org.in/files/Air_pollution_Delhi--_31.jpg)
Just before the Delhi government's odd-even formula comes into effect, the Centre on Wednesday stepped in with the environment ministry shooting off a series of directions with timelines to state g
Publication Date:
31/12/2015