At present, India is home to five mega cities, with over 10 million population, but by 2030 this number will go up to seven. Delhi will continue to be the second most populous town in the world till 2030, adding a staggering 9.6 million people to its population — the most in any mega city. The facts have been revealed in the 2016 World Cities Report issued by the UN’s department of economic and social affairs. The report has not relied on the administrative boundaries of cities but has, instead, preferred to use the concept of “urban agglomeration”, which is the “the contiguous urban area, or built-up area”. Around the world, about 500 million people live in 31 such mega cities. That’s about 6.8% of the world’s population or 12% of the world’s urban population. The report calculates that by 2030, the number of megacities will increase to 41 and their population to about 730 million or 8.7% of the world’s population. Other Indian cities figuring in 2016’s mega cities list are Mumbai, Kolkata, Bengaluru and Chennai. By 2030, Hyderabad and Ahmedabad will join them, as their respective populations would cross 10 million. The UN report shows that only a minority of urban dwellers live in mega cities.
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