A report by Huffington Post World on the richest world leaders which placed United Progressive Alliance chairperson Sonia Gandhi (with a net worth of USD 2 billion) above Queen Elizabeth, Sultan of Oman, Prince of Monaco and Sheikh of Kuwait has sparked a controversy.HuffPost World claims it has compiled a list of the 20 richest world leaders currently in power, based on available data and has placed Gandhi on the 12th position.Although earlier this yearhad listed Gandhi as the fourth richest world leader, there is some dispute about her actual net worth. Whiledoesn't list it, India's National Election Watch of the Association for Democratic Rights has listed it at Rs 1.38 crore.Huffington Post has, however, not disclosed the methodology by which it arrived at these conclusions; neither has it revealed its sources of information. However, it has now emerged that Huffport World's calculation of Gandhi's wealth comes from the website CelebrityNetWorth.com.The controversial website founded in October 2009 in Los Angeles, California has since grown to become one of the most popular and influential celebrity finance outlets on the internet.The website claims that its figures are acquired from all publicly available information including salaries, real estate holdings, divorces, record sales, royalties and endorsements. The estimated net worth come from a formula that takes out taxes, manager's fees, agents' fees, and lifestyle.However, the website also has a disclaimer, saying that all information presented on CelebrityNetWorth.com is gathered from sources which are thought to be reliable, but the viewer should not assume that such information is up to date or completely accurate or final.On Gandhi's wealth, the website says, "Sonia Gandhi is the President of the Indian National Congress and has a net worth of $2 billion. Sonia Gandhi has made her net worth from her many years in politics and was the longest serving President in the past 125 years. She was born in Lusiana, Veneto, Italy and has been involved in politics for over 13 years."However, there is no public information available regarding Gandhi's wealth that could have helped the website arrive at the USD 2 billion figure.Even in the past, several celebrities have mocked CelebrityNetWorth.com's headline-grabbing figures about their wealth which they found laughable.Comedian Ricky Gervais, after the website claimed in 2011 that he was worth USD 80 million, jokingly announced plans to take over Libya with that kind of wealth. Taking a realistic view of Gervais's wealth,wrote, "Gervais's net worth will no doubt have climbed a million or two following his hosting appearance at last month's Golden Globes, which made headlines around the world."An incident like this must give our readers an idea about the credibility of CelebrityNetWorth.com. For those who don't get it, keep a salt shaker at hand.