The Most Populous City in the World '' TOKYO''

The most populous city in the world is Tokyo, Japan, with a population of around 37.4 million people. Tokyo has the largest metropolitan area in Asia and is known for its modern infrastructure, extensive transportation network, and cultural diversity.

Following Tokyo, the other most populous cities are:

• Delhi, India: 31.4 million people, second place.
• Shanghai, China: 27 million people, third place.
• São Paulo, Brazil: 22 million people, fourth place.
• Mexico City, Mexico: 21.7 million people, fifth place.

These cities are major metropolitan hubs that house a significant portion of the world's population and play key roles in global economics and culture.