Top 10 Richest People in the World

 1)      Carlos Slim Helu: The Mexican telecom mogul is the richest man in the world with a net worth of $73 billion, which is $4 billion up from 2012. He has retained the top spot for the fourth consecutive year.

 2)      Bill Gates: The co-founder of Microsoft comes second with net worth of $67 billion, which is $6 billion more than what he earned in 2012. He has gained from investments like Ecolab, Republic Services and FEMSA.

 3)      Amancio Ortega: He jumped two places, overtaking Warren Buffett and Bernard Arnault, to become the world's third richest man. His net worth is $57 billion, $19.5 billion up from his 2012's $37.5 billion. He holds 60 percent share of clothing retailer Inditex.

 4)      Warren Buffett: He has slipped from third place in 2012 to fourth place in the list of world's richest people. The chairman and CEO of Berkshire has a net worth of $53.5 billion, as against $46 billion in 2012.

 5)      Larry Ellison: The CEO of Oracle is the fifth richest with $43 billion. He was in the sixth place last year with a fortune of $36 billion. He has also ventured into real estate and aviation.

 6)      Charles Koch: He has made it to the top 10 list, overtaking the likes of Eike Batista, Stefan Persson and Karl Albrecht. His net worth is $34 billion. He and his brother David hold 80 percent of Koch Industries.

 7)      David Koch: His net worth is $34 billion. He and his brother Charles 80 percent of Koch Industries. The Koch brothers' net worth was up by nine percent each this year.

 8)      Li Ka-shing: He is Asia's richest person with net worth of $31 billion. The chairman of Hutchison Whampoa Limited was world's ninth richest man in 2012. His wealth increased by $5.5 billion in 2013.

9)      Liliane Bettencourt and family: The 90-year-old L'Oreal heiress has a net worth of $30 billion, up $6 billion this year after shares of the cosmetic firm surged this year.

10)  Bernard Arnault: The 63-year-old man from France, who is the Chairman of Louis Vuitton Moet Hennessy, slipped from fourth to 10th place. His net worth fell from $41 billion in 2012 to $29 billion in 2013.