NEW DELHI, INDIA, July 12, 2014 (The Hindu): Delhi is now the world's second most populous city with 25 million inhabitants. Tokyo remains the world's largest city with 38 million inhabitants. The 2014 revision of the World Urbanisation Prospects by U.N. Department of Economic and Social Affairs (UN DESA)'s Population Division has pointed to rapid urban growth in India, China and Nigeria.
Further, the report says that while Tokyo's population is projected to decline, Delhi's would continue to grow rapidly and by 2030, the Capital would have 36 million inhabitants. Among the other most populous cities, Mumbai is in the top six with a population of 21 million.
The number of mega cities with a population of over 10 million has risen rapidly. While there were 10 such cities in 1990, there are 28 now and by 2030, the world is projected to have 41 mega cities with 10 million inhabitants or more. In Delhi, the pressure of such rapid increase in population has already started showing. Be it water, power, education, health care, infrastructure, law and order or sanitation, all the systems are under immense pressure, which is only set to increase.