<table><tbody><tr> <th>Name</th> <th>Age</th> <th>Country</th> <th>Net worth</th> <th>Primary source of wealth</th></tr> <tr> <td> <p>Warren  Buffett</p></td> <td> <p>77</p></td> <td> <p>U.S</p></td> <td> <p>$62 billion</p></td> <td> <p>Berkshire Hathaway</p></td></tr> <tr> <td> <p>Carlos  Slim HelÃº and family</p> </td> <td> <p>68</p></td> <td> <p>Mexico</p></td> <td> <p>$60 billion</p></td> <td> <p>Telecom industry</p></td></tr> <tr> <td> <p>Bill  Gates</p> </td> <td> <p>52</p></td> <td> <p>U.S.</p></td> <td> <p>$58 billion</p></td> <td> <p>Microsoft</p></td></tr> <tr> <td> <p>Lakshmi  Mittal</p></td> <td> <p>57</p></td> <td> <p>India</p></td> <td> <p>$45 billion</p></td> <td> <p>Steel industry</p></td></tr> <tr> <td> <p>Mukesh  Ambani</p> </td> <td> <p>50</p></td> <td> <p>India</p></td> <td> <p>$43 billion</p></td> <td> <p>Petrochemicals</p></td></tr> <tr> <td> <p>Anil  Ambani</p></td> <td> <p>48</p></td> <td> <p>India</p></td> <td> <p>$42 billion</p></td> <td> <p>Diversified investments</p></td></tr> <tr> <td> <p>Ingvar  Kamprad and family</p></td> <td> <p>81</p></td> <td> <p>Sweden</p></td> <td> <p>$31 billion</p></td> <td> <p>Ikea</p></td></tr> <tr> <td> <p>K.P.  Singh</p></td> <td> <p>76</p></td> <td> <p>India</p></td> <td> <p>$30 billion</p></td> <td> <p>Real estate</p></td></tr> <tr> <td> <p>Oleg  Deripaska</p></td> <td> <p>40</p></td> <td> <p>Russia</p></td> <td> <p>$28 billion</p></td> <td> <p>Aluminum industry</p></td></tr> <tr> <td> <p>Karl Albrecht</p></td> <td> <p>88</p></td> <td> <p>Germany</p></td> <td> <p>$27 billion</p></td> <td> <p>Aldi supermarkets</p></td></tr></tbody></table><br />It's notable that 4 out of top 10 are from Indian Origin, and 3 of them are still settled, and running their business from India with the exception of Mittal.<br />Ambani brothers are on 5th and 6th Place respectively. K P Singh of DLF infrastructure and realstate is on 8th place, and Gautam Adani is on 11th Place.<br /><br /><br /> 