Ratan Tata 039 s purported remarks expressing surprise at fellow industrialist Mukesh Ambani living in a billion-dollar mansion in Mumbai has sparked off a controversy today May 22 The Tata group Chairman was quoted by London 039 s Times newspaper as having said quot It makes me wonder why someone would do that That 039 s what revolutions are made of The person who lives in there should be concerned about what he sees around him and asking can he make a difference