2018 నాటికి భారతదేశం లో కాలుష్యం అధికంగా ఉన్న నగరం ఏది?
In May 2014 the World Health Organisation announced New Delhi as the most polluted city in the world. In November 2016, the Great smog of Delhi was an environmental event which saw New Delhi and adjoining areas in a dense blanket of smog, which was the worst in 17 years.
New Delhi