India, Oct. 21 -- India's air pollution problem has drawn global attention, with the national capital ranking as the world's most polluted city. While Delhi just topped the chart, there were two more Indian cities ranking pretty high on the global chart.

According to the list, shared by Swiss air quality firm IQAir, while Delhi stood at the top, Mumbai got the 5th spot and Kolkata ranked at the 8th. Two Pakistani cities also made it to the top 10 most-polluted, with Lahore at 2nd and Karachi at spot 4.

Here are the top 10 most polluted cities in the world, according to the report:

The worrying pollution data of the Indians cities came a day after Diwali, when firecrackers were burst across India. Crackers are one of the most significan...