The world is home to 1.76 million millionaires with collective net worth of $52.62 trillions.
Number of people in the world with more than $1 million to invest soared to a record of 12 million in 2012, a 9.2 per cent increase over 2011.
In 2012, the number of HNIs in the region increased 9.4 per cent to a record 3.68 million and their collective wealth grew to $12 trillion.
The growth in number of HNWIs in India was attributed to positive trends in equity market capitalisation, gross national income, consumption and real estate.
Overall financial wealth of high net worth individuals fell across all regions in 2011.
The top four countries account for 60.3% of the total worldwide HNWI population.
Real estate developers are banking high on ultra-luxury projects.