Billionaire brothers, Sri and Gopi Hinduja have topped The Sunday Times Rich List for the fourth consecutive year.
It is the classic rags-to-riches story - with the family starting from a small business in Mumbai that is now said to be worth £28.472 billion.
They also own an incredible home on Carlton House Terrace in London near Buckingham Palace - which was priced at £66.5 million in 2006 - have spent another £40million restoring it.
The incredible 60-room building is the former head office of the Crown Estate and was bought from the Queen, according to Forbes.
The home, almost equidistant from Buckingham Palace and 10 Downing Street, consists of four interconnected Regency houses and is home to the entire family, as well as 30 other relatives.
The family, who prefer to operate out of the public gaze, now operates in multiple sectors including transport, communications and banking.
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In 2019, Shanu Hinduja, daughter of Sri, spoke out to highlight how bankers had created a "toxic culture" for women.
Shanu said female entrepreneurs were frozen out by a "deeply patriarchal" system that often refused to fund their ventures.
She added that mums were especially penalised as many male investors crudely doubted they would focus fully on their work when they had a young family.
Shanu, who often wears ties to meetings, told the Times: "As the chair of a bank, I all too often witness the toxic culture for women in the banking sector. We are underrepresented at all levels of the global financial system."
Their Hinduja's incredible empire has enjoyed a bumper year according to the rich list - with the biggest fortune recorded in the list’s 34-year history.
Two of the four siblings, Sri, 86, and Gopi 82, Hinduja first came top of Britain’s rich list in 2015 - with the family business originally started by their dad Parmanand, in 1914.
Parmanand founded the Hinduja Company in Mumbai, and within five years, it had expanded to Iran, where it remained until 1979, when the Shah was overthrown.
There he traded carpets, tea and spices, while today the family has stakes in oil and gas, energy, media and banking and owns the London-registered Hinduja Automotive.
Dubbed the 'Fab Four' in India, the siblings are teetotal and vegetarian. Sri and Gopi moved to London, third brother, Prakash, lives in Geneva and the fourth, Ashok, remains in Mumbai.
According to the times, London-based Gopi Hinduja is focused on electric vehicles, while his son Dheeraj, 50, oversees their Leeds-based business Switch Mobility, which is developing a new generation of zero-emission vehicles.
Speaking previously about their wealth, Gopi said: "If you consider one to be rich because of his money, you are wrong.
"I consider someone to be rich if he has good friends, good contacts, good relationships."
One of their ongoing projects in London is the £350 million development of the Old War Office - Winston Churchill's base during World War Two.
The historic building will be transformed into a stunning five-star hotel, complete with a ballroom for 600 guests, an 82ft swimming pool, a spa, two wine cellars, a rooftop bar and 88 apartments - each with five bedrooms.
The family remain one of the most powerful in world business with former President Bill Clinton and Tony Blair, George H Bush and Margaret Thatcher counted as friends.
They have shared their extraordinary wealth by funding scholarships, hospitals and charitable foundations.
