Patna air quality is now worse than Delhi: WHO
Shockingly, including Bihar's capital Gwalior, Allahabad and Raipur are among the top 10 polluted cities in the world.
Jun 20, 2016, 20:02 PM IST
Shockingly, including Bihar's capital Gwalior, Allahabad and Raipur are among the top 10 polluted cities in the world.
Jun 20, 2016, 20:02 PM IST