Mukesh Ambani is ranked fourth among the World's top 10 billionaires by the Forbes Magazine with total assets worth $29 billion followed by another Indian, steel tycoon L N Mittal, who ranked fifth with a total value of $28.7 billion.
The for 2010 has witnessed Mexican Carlo Slim surpassing Bill Gates and Warrant Buffett to be the richest man on the earth. Slim's total worth rose $18.5 billion during the year to an estimated $53.5 billion, the Forbes Magazine said. Gates remained second with a fortune of $53 billion.
Apart from Reliance Industries Chairman Mukesh Ambani and Head of ArcelorMittal L N Mittal, there were four other Indian tycoons in the top 50 list and 49 others in the complete list of 1,011 billionaires.
The four Indian businessmen, besides Ambani and Mittal, in the top 50 list are Azim Premji (ranked: 28, worth: $17 billion), Sashi Ruia and (ranked: 40, worth: $13 billion), and (ranked: 44, worth: $12.2 billion).
DLF's K P Singh (74), Aditya Birla Group's Kumar Mangalam Birla (86) and Bharti Airtel's Head Sunil Mittal (87) are the other Indians who are among the top 100 wealthy in India.
Top 10 list
1. Carlos Slim Helu
2. Bill Gates
3. Warren Buffet
4. Mukesh Ambani
5. Lakshmi Mittal
6. Lawrence Ellison
7. Bernard Arnault
8. Eike Batista
10. Karl Albrecht