Bill Gates again world's wealthiest person

(Bill Gates)

Microsoft founder Bill Gates has regained the top spot as the world's richest person with his total net worth estimated at $76bn this year, BBC has reported.

In one year, Gates increased its wealth by $9bn from $67bn in 2013.

Gates (58) and his wife Melinda continue to finance numerous humanitarian project around the world.

Gates was one of the initiators of the Giving Pledge campaign in 2010. More than 120 extremely rich people from all over the world have signed a document binding them to donate minimum 50 percent of their wealth to charity.