Indian cities Delhi, Mumbai and Kolkata will be among
the world’s largest urban agglomeration by population in 2025, according
to the United Nations projections. According to the report Tokyo is
currently the largest urban agglomeration with the highest population in
the world.![Global cities set for population explosion](http://l2.yimg.com/bt/api/res/1.2/5MQbRH4HkFpVBRHBdhUGEA--/YXBwaWQ9eW5ld3M7Zmk9aW5zZXQ7aD0zOTY7cT04NTt3PTU5NA--/http://l.yimg.com/os/624/2012/10/25/1Tokyo-Gi-jpg_072942.jpg)
![Global cities set for population explosion](http://l.yimg.com/bt/api/res/1.2/AtIPNEcblJa7P8PluhKt8Q--/YXBwaWQ9eW5ld3M7Zmk9aW5zZXQ7aD01OTQ7cT04NTt3PTM4NQ--/http://l.yimg.com/os/624/2012/10/25/2Delhi-GI-jpg_072943.jpg)
![Global cities set for population explosion](http://l3.yimg.com/bt/api/res/1.2/O7m_GpR2sR558e1TBRlFKg--/YXBwaWQ9eW5ld3M7Zmk9aW5zZXQ7aD0zMzM7cT04NTt3PTUxMw--/http://l.yimg.com/os/624/2012/10/25/3Mumbai-TS-jpg_072943.jpg)
![Global cities set for population explosion](http://l3.yimg.com/bt/api/res/1.2/YkV0gvH1rUhFrTDE2PCa2w--/YXBwaWQ9eW5ld3M7Zmk9aW5zZXQ7aD0zMzg7cT04NTt3PTUwNw--/http://l.yimg.com/os/624/2012/10/25/4Sao-Paulo-TS-jpg_072942.jpg)
![Global cities set for population explosion](http://l.yimg.com/bt/api/res/1.2/d2hFBJ7WTMNjh66yPnEa3Q--/YXBwaWQ9eW5ld3M7Zmk9aW5zZXQ7aD0zOTY7cT04NTt3PTU5NA--/http://l.yimg.com/os/624/2012/10/25/5Dhaka-GI-jpg_072942.jpg)
![Global cities set for population explosion](http://l1.yimg.com/bt/api/res/1.2/7KS3M4S0VUbun4LmHh0Lzg--/YXBwaWQ9eW5ld3M7Zmk9aW5zZXQ7aD0zMzU7cT04NTt3PTUxMQ--/http://l.yimg.com/os/624/2012/10/25/6Mexico-TS-jpg_072951.jpg)
![Global cities set for population explosion](http://l2.yimg.com/bt/api/res/1.2/tM53SCq0crAaL9b9qkqPMw--/YXBwaWQ9eW5ld3M7Zmk9aW5zZXQ7aD0zNTk7cT04NTt3PTQ3OA--/http://l.yimg.com/os/624/2012/10/25/7NewYork-TS-jpg_072951.jpg)
![Global cities set for population explosion](http://l3.yimg.com/bt/api/res/1.2/HDyCyA14x5hwfpGXzYnIZQ--/YXBwaWQ9eW5ld3M7Zmk9aW5zZXQ7aD0zOTY7cT04NTt3PTU5NA--/http://l.yimg.com/os/624/2012/10/25/8Kolkata-GIl-jpg_072951.jpg)
![Global cities set for population explosion](http://l3.yimg.com/bt/api/res/1.2/.0.Z9.4IUZkKXyQc9oa5bw--/YXBwaWQ9eW5ld3M7Zmk9aW5zZXQ7aD01MTE7cT04NTt3PTMzNQ--/http://l.yimg.com/os/624/2012/10/25/9-Shanghai-TS-jpg_072952.jpg)
![Global cities set for population explosion](http://l1.yimg.com/bt/api/res/1.2/_AL.SVrf9myqA2G1Q_OEhA--/YXBwaWQ9eW5ld3M7Zmk9aW5zZXQ7aD0zOTY7cT04NTt3PTU5NA--/http://l.yimg.com/os/624/2012/10/25/10Karachi-GI-jpg_072952.jpg)
![Global cities set for population explosion](http://l2.yimg.com/bt/api/res/1.2/5MQbRH4HkFpVBRHBdhUGEA--/YXBwaWQ9eW5ld3M7Zmk9aW5zZXQ7aD0zOTY7cT04NTt3PTU5NA--/http://l.yimg.com/os/624/2012/10/25/1Tokyo-Gi-jpg_072942.jpg)
![Global cities set for population explosion](http://l.yimg.com/bt/api/res/1.2/AtIPNEcblJa7P8PluhKt8Q--/YXBwaWQ9eW5ld3M7Zmk9aW5zZXQ7aD01OTQ7cT04NTt3PTM4NQ--/http://l.yimg.com/os/624/2012/10/25/2Delhi-GI-jpg_072943.jpg)
![Global cities set for population explosion](http://l3.yimg.com/bt/api/res/1.2/O7m_GpR2sR558e1TBRlFKg--/YXBwaWQ9eW5ld3M7Zmk9aW5zZXQ7aD0zMzM7cT04NTt3PTUxMw--/http://l.yimg.com/os/624/2012/10/25/3Mumbai-TS-jpg_072943.jpg)
![Global cities set for population explosion](http://l3.yimg.com/bt/api/res/1.2/YkV0gvH1rUhFrTDE2PCa2w--/YXBwaWQ9eW5ld3M7Zmk9aW5zZXQ7aD0zMzg7cT04NTt3PTUwNw--/http://l.yimg.com/os/624/2012/10/25/4Sao-Paulo-TS-jpg_072942.jpg)
![Global cities set for population explosion](http://l.yimg.com/bt/api/res/1.2/d2hFBJ7WTMNjh66yPnEa3Q--/YXBwaWQ9eW5ld3M7Zmk9aW5zZXQ7aD0zOTY7cT04NTt3PTU5NA--/http://l.yimg.com/os/624/2012/10/25/5Dhaka-GI-jpg_072942.jpg)
![Global cities set for population explosion](http://l1.yimg.com/bt/api/res/1.2/7KS3M4S0VUbun4LmHh0Lzg--/YXBwaWQ9eW5ld3M7Zmk9aW5zZXQ7aD0zMzU7cT04NTt3PTUxMQ--/http://l.yimg.com/os/624/2012/10/25/6Mexico-TS-jpg_072951.jpg)
![Global cities set for population explosion](http://l2.yimg.com/bt/api/res/1.2/tM53SCq0crAaL9b9qkqPMw--/YXBwaWQ9eW5ld3M7Zmk9aW5zZXQ7aD0zNTk7cT04NTt3PTQ3OA--/http://l.yimg.com/os/624/2012/10/25/7NewYork-TS-jpg_072951.jpg)
![Global cities set for population explosion](http://l3.yimg.com/bt/api/res/1.2/HDyCyA14x5hwfpGXzYnIZQ--/YXBwaWQ9eW5ld3M7Zmk9aW5zZXQ7aD0zOTY7cT04NTt3PTU5NA--/http://l.yimg.com/os/624/2012/10/25/8Kolkata-GIl-jpg_072951.jpg)
![Global cities set for population explosion](http://l3.yimg.com/bt/api/res/1.2/.0.Z9.4IUZkKXyQc9oa5bw--/YXBwaWQ9eW5ld3M7Zmk9aW5zZXQ7aD01MTE7cT04NTt3PTMzNQ--/http://l.yimg.com/os/624/2012/10/25/9-Shanghai-TS-jpg_072952.jpg)
![Global cities set for population explosion](http://l1.yimg.com/bt/api/res/1.2/_AL.SVrf9myqA2G1Q_OEhA--/YXBwaWQ9eW5ld3M7Zmk9aW5zZXQ7aD0zOTY7cT04NTt3PTU5NA--/http://l.yimg.com/os/624/2012/10/25/10Karachi-GI-jpg_072952.jpg)