VIDEO: Calcutta 'bursting at the seams'

Over the next 15 years, the world's cities are expected to grow at a speed and scale unlike anything seen before. Calcutta is already bursting at the seams with a population of around 15 million.

This article is from the BBC News website. � British Broadcasting Corporation, The BBC is not responsible for the content of external internet sites.

Source: http://www.bbc.co.uk/go/rss/int/news/-/news/world-south-asia-13836067

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