Air pollution: These are India's most polluted cities; Delhi tops the list
The study pointed out that it's not just Delhi, but none of the 168 Indian cities monitored comply with the WHO standards.
Jan 12, 2017, 14:23 PM IST
The study pointed out that it's not just Delhi, but none of the 168 Indian cities monitored comply with the WHO standards.
Jan 12, 2017, 14:23 PM IST