Can India’s richest man remake Mumbai’s biggest slum?

Dharavi is a square mile of corrugated iron, concrete blocks and plastic sheeting in the middle of Mumbai, crammed with humanity. With perhaps 1m residents, the slum is one of the world’s biggest. As a setting for outlandish rags-to-riches stories, it may be the best-known. In “Slumdog Millionaire”, which won eight Oscars in 2009, a Dharavi youth’s hardscrabble experiences helped him win the Indian version of “Who Wants to be a Millionaire?” In “Gully Boy”, a more recent Bollywood potboiler, a slum-dwelling rapper overcomes prejudice to win the hearts of the city’s Westernised overclass. But Dharavi’s latest saga may be its most dramatic yet.