
The list, published by the Singapore-based Wealth-X group, places steel magnate and ArcelorMittal chairman Lakshmi Mittal at second place with a fortune of $15.8 billion.
Dipankar De Sarkar reports.
Desi net worth With the looming shadow of Iran oil sanctions removed, India and the United States made substantial progress at their third strategic dialogue, including a breakthrough on the stalled civil nuclear deal.

Neighbours of an Indian family killed in a murder-suicide grappled with allegations that the man accused in the shooting in a small California agricultural town was a former Indian army officer wanted for years for murder in his homeland.
Wanted in IndiaAn Indian maid was on Thursday jailed for 50 months for stealing more than 400,000 Singapore dollar worth of cash and jewellery from her employer.
The Mayor of Los Angeles, Antonio Villaraigosa, has highlighted the interest of America's second largest city in closely working with India, particularly in the area of clean technology.

The 32-year-old monk isn't sure now where his next session will be. He'll keep following the protesters to lead meditation, though, convinced they will only roll back the inequality around them if they find equanimity deep inside.
Prime Minister Manmohan Singh on Saturday arrived in Singapore on a two-day visit as part of a two-nation tour aimed at pushing the 'Look East' policy.
Prime Minister Manmohan Singh on Sunday pitched for strengthening ties with Singapore, saying the relation with the island nation contributed to a strategic shift in India’s Look East policy.
Slain Indian student Anuj Bidve's parents have viewed his body for the first time at a funeral parlour here, more than a week after the Pune boy was killed in an unprovoked attack in the British city of Salford.
S M Krishna, the first Indian foreign minister to visit Israel in over a decade, met Israeli Prime Minister Benjamin Netanyahu and said, international terrorism is a "problem" for both countries and emphasised on need for greater bilateral trade relations.

Four Hindu doctors have been gunned down in Pakistan's southern Sindh province sparking fears and panic among the minority community. The doctors were gunned down on Monday at their clinic in Chak town.
Foreign secretary Ranjan Mathai also said India was looking forward to the visit of the judicial commission from Pakistan in connection with the Mumbai terror attack case.
Accusing India of trying to gain influence in Kabul after the planned US withdrawal by 2014, former Pakistan President Pervez Musharraf has also hit out at Afghan President Hamid Karzai for "going along" with it.
Distinguished author and statesman Dr Karan Singh was conferred honorary Doctor of Letters (D Litt) degree by Kathmandu University on Sunday.
Gujarat Chief Minister Narendra Modi will pay a five-day visit to China from November 8 at the invitation of the ruling Communist Party, during which he will explore investment opportunities.