Annual Billionaire rankings by Forbes magazine Top 10 World Billionaires1 Carlos Slim Helu & family, Mexico ($53.5 billion)
2 William Gates III (Bill Gates), United States ($53.0 billion)
3 Warren Buffett, United States ($47.0 billion)
4 Mukesh Ambani, India ($29.0 billion)
5 Lakshmi Mittal, India ($28.7 billion)
6 Lawrence Ellison, United States ($28.0 billion)
7 Bernard Arnault, France ($27.5 billion)
8 Eike Batista, Brazil ($27.0 billion)
9 Amancio Ortega, Spain ($25.0 billion)
10 Karl Albrecht, Germany ($23.5 billion) Germany
World Top Indian BillionairesMukesh Ambani ($29 billion), Lakshmi Mittal ($28.7 billion), Azim Premji ($17 billion), Anil Ambani ($13.7 billion), Shashi and Ravi Ruia ($13 billion), Savitri Jindal ($12.2 billion), Kushal Pal Singh ($9 billion), Kumar Birla ($7.9 billion), Sunil Mittal ($7.8 billion) and Anil Agarwal ($6.4 billion).
U.S is top position in most billionaires in the world (403 billionaires) followed by China
The youngest billionaire is Mark Zuckerberg , 25yrs old ($4 billion)