21. Naresh Goyal — £540 million.
69-year-old Goyal is the founder and chairman of Indian international airline Jet Airways.
His valuation rose from £220 million in 2017 to £540 million this year.
=19. Bhupendra and Ramesh Kansagra — £600 million.
Newcomers to Rich List in 2017, brothers Bhupendra and Ramesh Kansagra are tied for 19th place.
The duo are directors of Solai Holdings Limited, an investment services company. Their valuation increased by £100 million over the past year.
=19. Mayurbhai Madhvani (and family) — £600 million.
73-year-old Mayurbhai Madhvani is a Ugandan businessman and entrepreneur, and the managing director of the Madhvani Group of Companies, one of the largest conglomerates in the African country.
His family have their roots in India, but were expelled from Uganda in the 1970s by the dictator Idi Amin as part of an ethnic cleansing campaign.
They moved to Britain, but kept their business links to Uganda. The Madhvani Group owns countless companies, in fields from running airports to hotels to steel.
His father was patriarch and Madhavani Group founder Muljibhai Madhvani.
Madhvani's valuation grew by £100 million in the past year.
18. Ranjit and Baljinder Boparan — £740 million.
52-year-old Ranjit Boparan and his wife Baljinder made their fortune in food manufacturing.
Under the umbrella company Boparan Holdings Limited, the couple founded and own 2 Sisters Food Group, Northern Foods, and the chains restaurants Giraffe and Ed's Easy Diner.
While they've held their spot in 18th place since 2017, their valuation actually dropped by £160 million over the last year.
17. Vijay and Bhikhu Patel — £785 million.
The Patel brothers are the founders of pharmeceuticals company Waymade PLC.
Their wealth grew by £100 million in the last year.
=15. Surinder Arora — £800 million.
60-year-old Surinder Aror is founder and chairman of the Arora Group, and has made his fortune through hotels.
Having arrived in the UK as a teenager from India, Surinder founded the business in 1999, running a luxurious four-star hotel at Heathrow for airline staff.
He even purchased the Renaissance London Heathrow hotel in 2012, where he had worked as a waiter in the 1970s.
Today, the group owns a number of property, construction, and hotel companies, including the InterContinental London at The O2 and the World Business Centre at Heathrow.
Arora's valuation nearly doubled in the past year from £450 million.
=15. Lord Paul (and family) — £800 million.
48-year-old Swraj Paul is founder of the Caparo Group, one of the UK's largest steel businesses.
He became a member of the House of Lords in 1996, and is therefore known as Lord Paul.
Despite the fact that 16 of the group's companies went into administration in 2015, according to The Birmingham Post, the wealth of Lord Paul's family went up by £300 million in the year to 2017, thought it remained flat in the past year.
14. Muhmud Kamani (and family) —£875 million.
54-year-old joint CEO of fashion retailer Boohoo.com Muhmud Kamani saw the value of his family's empire grow by £75 million in the past year.
13. Zameer Choudrey — £985 million.
60-year-old Bestway Group conglomerate CEO Zameer Choudrey saw his wealth increase by £75 million over the past year.
In 2016, he was awarded a CBE (Commander of the British Empire) awared by the Queen.
12. Manu Chandaria (and family) — £1 billion.
89-year-old Kenyan businessman Manilal Premchand Chandaria is of Indian descent, but was born in Nairobi.
He is the CEO of the Comcraft Group of Companies, a billion dollar enterprise that has a presence in over 40 countries, is on the boards of several prominent East African companies, and was awarded theOBE (Order of the British Empire) by the Queen in 2003.
11. Harpal, Raj, and Tony Matharu (and family) — £1.2 billion.
One of London’s largest privately-held luxury hotel empires, Global Grange Limited, is headed up by the Matharu brothers, Harpal, Raj, and Tony.
The brothers saw their fortune grow from £845 million to £1.2 billion in the past year.
=9. Zuber & Mohsin Issa — £1.3 billion.
Ranked in 34th place last year, the valuation of brothers Zuber & Mohsin Issa has risen by a whopping £1 billion in just one year.
They are the owners of Lancashire-based petrol company Euro Garages Limited, which has gone from a "slightly worn petrol station" in 2001 to one of Europe's leading companies in the sector as part of the EG Group.
=9. Rajesh Satiija Ram — £1.3 billion.
Indian-born Rajesh Ram Satiija made his fortune in Africa, and is one of the continent's most enterprising business figures.
With a reputation as "Mr Lucky," he pushed up his net worth with investments in the mining and agriculture industries. His Sun and Sand Group spans three continents and his valuation rose from £910 million in 2017 to £1.3 billion this year, one of the biggest jumps on the list.
He has a home in Mayfair and is now looking at a public flotation for his fast expanding group, where revenues have tripled over the last few years.
8. Jasminder Singh — £1.5 billion.
67-year-old Jasminder Singh OBE, a British Sikh, is the chairman and CEO of Edwardian Hotels.
He owns 14 luxury hotels in central London under the Radisson Blu Edwardian brand, as well as The May Fair Hotel.
7. Cyrus and Priya Vandrevala — £2.1 billion.
45-year-old Indian private equity investor and philanthropist Cyrus Vandrevala co-founded Intrepid Capital Partners with Pete Musser in 2001, of which he is now vice chairman.
He and his wife, Priya, created the Vandrevala Foundation, which supports mental illness.
=5. Anil Agarwal — £2.3 billion.
66-year old Anil Agarwal is the executive chairman of Vedanta Resources, one of the fastest growing mining and metals group in the world.
Agarwal lives in London, but his philanthropic activities are targeted at eradicating poverty in India by creating jobs and contributing to GDP growth through his business operations.
=5. Simon, Bobby, and Robin Arora — £2.3 billion.
The Indian Arora brothers have discount retailer B&M to thank for their fortune. They acquired the chain in 2004 from Phildrew Investments, when it had 21 stores. In 2016, it opened its 500th store.
B&M sells a wide range of products including furniture, TVs, food, toiletries, and toys.
4. Sir Anwar Pervez — £2.4 billion.
83-year-old Bestway chairman Sir Anwar Pervez has risen from seventh to fourth place on the list, and his valuation grew by £350 million since the release of last year's rich list.
He came to Britain at 21 from Pakistan. In 1963, he established his first convenience store in London's Earls Court, changing the name to Bestway by the early 70s.
He opened Bestway's first wholesale warehouse in 1976. The company is now a multibillion-pound enterprise and his son, Dawood, is the trading director of Bestway Wholesale.
3. Sri Prakash Lohia — £5.1 billion.
The 66-year-old Indonesian chairman of the Indorama Corporation, a petrochemical and textile company, is worth a whopping £5.1 billion, up an entire £1.1 billion on last year.
2. Lakshmi Mittal — £14 billion.
Lakshmi Mittal is the 68-year-old CEO and chairman of ArcelorMittal, the world’s largest steelmaking company. His valuation has grown by over £2 billion since 2017.
1. Gopichand and Srichand Hinduja (and family) — £22 billion.
The Hinduja family have maintained their position at the top of the list for the fifth year in a row.
Gopichand and Srichand Hinduja are now worth £22 billion, up from £19 billion last year.
They are two of four brothers who control the Hinduja Group, a multinational empire with businesses ranging from trucks to banking and gulf oil.
The group was started by Parmanand Deepchand Hinduja. Seven members of the third generation now work in the group, which is spread over five continents.
Srichand, born in 1935, Gopi, born in 1940, and Prakash Parmanand, born in 1945, live in London. Their youngest brother, Ashok, lives in Mumbai.
The family also added a further £3 billion to their total net worth in the past year, taking them to an astounding total net worth of £22 billion.
Of the family-run business, GP Hinduja, co-chair of the group, said: "The third generation has turned out more intelligent, smarter and more capable than any of us."