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He owns 63.20 Billion US dollars, earlier Bill Gates were the World's richest person from the past four years he has 62.29 Billion US dollars.
Interestingly Mukesh Ambani climbed up to the first position in one month from the fourth position. About a month ago he became the most richest person of India and the fourth in world instead of Lakshmi Mittal.
Lakshmi Mittal earned his money from his foreign businesses and he is permanently settled in UK whereas Mukesh Ambani lives in India and earned all the wealth from his indian businesses. Analysts say that stock market will go up more in the coming weeks.
Well done Mukesh, spent this money for the well being of poor indian peoples. Because, the rupee that is not used for useful purpose (i.e. to serve the humanity) is useless.