It's no secret that Indians the world over are making their mark in various fields, including the business arena.

Let's take a look at two Indians who have been ranked among the richest Britons in the world.

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Lakshmi Mittal and family

Worth: 12,700 million pound

Industry: Steel

Rank: 1

Lakshmi Mittal is an Indian steel magnate. He is the chairman and chief executive officer of ArcelorMittal, the world's largest steelmaking company.

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Mittal is the richest man in India, Asia and the United Kingdom, and second in Europe. He is the 44th "most powerful person" among the 68 individuals named in Forbes's Most Powerful People list.

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Alisher Usmanov

Worth: 12,315 million pound

Industry: Mining and investment

Rank: 2

He has accrued his wealth from mining, lumber and investment. He is the majority shareholder of Metalloinvest, a Russian industrial conglomerate, which he founded to manage Gazprom's metals interests.

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He is also a co-owner of the media holding which comprises 7TV and Muz-TV federal television channels and 33 regional TV broadcasting stations. Besides this, Usmanov owns the Kommersant and Sekret Firmy Publishing Houses.

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Roman Abramovich

Worth: 9,500 million pound

Industry: Oil and industry

Rank: 3

Roman Abramovich is a Russian business tycoon and the main owner of the private investment company Millhouse.

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He is known outside Russia as the owner of Chelsea Football Club, an English Premier League football team, and for his wider involvement in European football.

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Sri and Gopi Hinduja

Worth: 8,600 million pound

Industry: Industry and finance

Rank: 4

The Hinduja Group is a global conglomerate company headquartered in London, United Kingdom. It was founded in 1914 by Parmanand Deepchand Hinduja, initially operating in Mumbai, India, and setting up its first international operation in Iran in 1919.

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The group has various subsidiaries such as Ashok Leyland, Gulf Oil, Hinduja Bank Switzerland, IndusInd Bank, Hinduja Global Solutions, Hinduja TMT and Hinduja Ventures.

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Leonard Blavatnik

Worth: 7,580 million pound

Industry: Diversified investments

Rank: 5

Blavatnik is a Russian-American businessman, currently living in London, with a home on Kensington Palace Gardens. He has made his fortune through diversified investments, through Access Industries, in Russia, Europe, North and South America.

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Born in the Soviet Union, he attended University in Moscow. He emigrated with his family from Russia to the US in 1978, and received a masters in computer science from Columbia University and an MBA degree from Harvard Business School in 1989.

In the West, he is known as Len Blavatnik.

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Ernesto and Kirsty Bertarelli

Worth: 7,400 million pound

Industry: Pharmaceuticals

Rank: 6

Ernesto Bertarelli is a Swiss-Italian billionaire and entrepreneur. Born in Rome, his family moved to Switzerland in 1977. He graduated from Babson College in 1989, and earned an MBA at Harvard Business School in 1993. Kirsty is a song writer, former Miss UK and wife of Ernesto.

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His father founded Serono, a pharmaceutical company that he moved from Rome to Switzerland. Bertarelli became CEO and Deputy Chairman in 1996, and with his sister Dona inherited ownership in 1998 on the death of his father.

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The Duke of Westminster

Worth: 7,350 million pound

Industry: Property

Rank: 7

Major-General Gerald Cavendish Grosvenor, sixth Duke of Westminster, is the owner of property company Grosvenor Group.

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He was educated at Harrow School and RMA Sandhurst. In 2005, he was elected Chancellor of the University of Chester.

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David and Simon Reuben

Worth: 7,083 million pound

Industry: Property and Internet

Rank: 8

David and Simon Reuben are well known British businessmen and joint chief executives of Reuben Brothers. The brothers increased their fortune during the 1970s and 1980s in both metals trading and property.

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Nearly half their fortune is in liquid assets such as cash and bonds. They are not keen on publicity, but provide some details about their many interests on their personal website.

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John Fredriksen and family

Worth: 6,600 million pound

Industry: Shipping and oil services

Rank: 9

John Fredriksen is a Norwegian-born Cypriot oil tanker and shipping tycoon, owner of the world's largest oil tanker fleet, and was Norway's richest man until he chose to abandon his Norwegian citizenship and take up a Cypriot passport.

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He also has major interests in the offshore driller SeaDrill, the fish farming company Marine Harvest the dry bulk company Golden Ocean Group, and supply vessel company Deep Sea Supply.

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Galen and George Weston and family

Worth: 5,900 million pound

Industry: Retailing

Rank: 10

Willard Gordon Galen Weston is a Canadian businessman and Executive Chairman of George Weston Limited, a leading food processing and distribution company.

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Weston is also head of the world's second-largest luxury goods retailer as Chairman of Holt Renfrew in Canada and the Selfridges Group, owner of Selfridges in the United Kingdom, Brown Thomas of Ireland, the De Bijenkorf department store chain in the Netherlands, and the recently acquired Ogilvy department store in Montreal.