1: Tokyo, Japan, is the largest city by population with over 37 million residents.

2: Delhi, India, is the second largest city with over 30 million people.

3: Shanghai, China, is the third largest city with over 27 million inhabitants.

4: Sao Paulo, Brazil, is the fourth largest city with over 22 million residents.

5: Mumbai, India, is the fifth largest city with over 20 million people.

6: Beijing, China, is the sixth largest city with over 20 million residents.

7: Dhaka, Bangladesh, is the seventh largest city with over 17 million inhabitants.

8: Karachi, Pakistan, is the eighth largest city with over 16 million people.

9: Istanbul, Turkey, is the ninth largest city with over 15 million residents.