Amongst the world's wealthiest billionaires, over four percent are Indians, says Forbes magazine.

Forbes released Wednesday its annual list of the richest people in the world for 2012. Out of the 1,226 billionaires who made it to the list, 48 people came from India alone.

Business tycoon Mukesh Ambani topped the list of the richest Indians and closed in at 19th rank in the global list. The Reliance Industries chairman has a net worth estimated at a staggering $22.3 billion.

His brother Anil Dhirubhai, chairman of Reliance Anil Dhirubhai Ambani Group, is way down the list at 118th position with a net worth of $7.8 billion. Others on the rich list include Wipro chairman Azim Premji and Infosys co-founder NR Narayan Murthy.

Lakshmi Mittal slid down to the 21st position on the Forbes list, a first for India's steel king who was among the world's top ten richest since 2004. According to Reuters, Forbes listed Mittal as the biggest loser, his networth having fallen from $31.1 billion to $20.7 billion.

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Forbes rich list has also featured billionaires Savitri Jindal and Indu Jain, two quintessential Indian women who are in complete charge of running their respective corporate companies. With a networth of $10.9 billion, Jindal ranks in at the 80th position. Jain, who is chairperson of Bennett Coleman, stands at the 578th spot and has a networth of $2.2 billion.

Check out the slideshow here to know more about the top ten Indians who made it to Forbes' rich list this year.