Ask any Bombaywallah about Vishram Society - Tower A of the Vishram Co-operative Housing Society - and you will be told that it is unimpeachably pucca. Despite its location close to the airport, under the flight path of 747s and bordered by slums, it has been pucca for some fifty years. 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; a Mumbai of development and new money; of wealthy Indians returning with