A peep into the first billion dollar home in the world Nita Ambani was visiting the Mandarin Oriental hotel in New York in the year 2005 when she visited a spa in the hotel, overlooking the central park of the city. What she saw at the spa would later become a motivation for him to design the first billion dollar home in the world. Nita was struck by the classy interior decoration of the hotel spa and he decided to inquire about its designer. Nita Ambani used to be an…