Every building tells a story, but in the jungles of Mumbai, one building - and one man- stand on the borderline between India's past and its future. Ask any Bombaywallah about Vishram Society - Tower A of the Vishram Co-operative Housing Society - and you will be told that it has been pucca for some fifty years despite its location under the flight path and border of slums. But Bombay has changed in half a century - not least its name - and the world in which Tower A was first built is giving way to a new city ...