this is one of the worst articles from rediff and would compete in the rediff's top 10 worst articles of all-time.
The title says congestion, which in population context means, numbers and density. Going by the above two parameters, I would say, most of the Asian cities should figure in.
This is could be the list: 1. Dhaka, Bangladesh 2. Tokyo, Japan 3. Mumbai, India 4. Mexico City, Mexico 5. Seoul, S Korea 6. Karachi, Pakistan 7. Shanghai, China 8. Kolkata, India 9. Cairo, Egypt 10. Delhi, India 11. Jakarta, Indonesia 12. London, UK 13. Beijing, China 14. New York, USA 15. Singapore, Singapore 16. Bangkok, Thailand 17. HongKong, China
