According to WHO's latest reports, the most polluted city in India is
Gwalior
Allahabad
Patna
Raipur
New Delhi
According to WHO’s latest urban air quality database for 2016, Gwalior is India’s most polluted city and is ranked No.2 in the world after Zabol.
According to a report by the Central Pollution Control Board (CPCB) the air quality of ______________ is most polluted among the 42 cities monitored recently.
According to the World Health Organizations report released which of the following has been announced as the worst polluted city in the world in terms of air quality?