Delhi Wasn't World's Most Polluted City Last Year, This Indian Town Was
At the country level, Pakistan ranked as the world's most polluted nation, followed by Bangladesh and Tajikistan.
स्रोत: NDTV
NDTV पर पूरा लेख पढ़ें →At the country level, Pakistan ranked as the world's most polluted nation, followed by Bangladesh and Tajikistan.
स्रोत: NDTV
NDTV पर पूरा लेख पढ़ें →