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Mumbai among world's worst city to live in

World's 10 least habitable cities

Figures based on the Cities of Opportunity 2012 report released by PWC, a

ranking 27 cities across the world on based on variables like cultural

vibrancy, quality of living, working age population and traffic

congestion. (Save the total, each score is out of 27.) These 10 global

megopolises got the lowest scores.