Srichand, 78, and Gopichand Hinduja, 74 - who run the multinational Hinduja Group conglomerate with interests across automotive, real estate and oil - moved up from third position last year to top the UK's billionaire charts this year with a fortune of 11.9 billion pounds, according to The Sunday Times Rich List 2014 made public today.
The London-based Hindujas edged out steel tycoon Lakshmi N Mittal, who rose one position upwards to the third rank with 10.25 billion pounds, even as Arsenal shareholder and Russian business chief Usmanov, who topped the list till last year, fell to the second place after his estimated fortune dropped to 10.65 billion pounds.
According to the list of 1,000 richest men and women, Britain's wealthiest people are richer than ever before, with a combined fortune of 518.9 billion pounds - equivalent to a third of the nation's gross domestic product (GDP).
The rich have surged to new heights with their wealth rising by 15.4 per cent on last year's total of 449.6 billion pounds.
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The list also includes NRI industrialists such as Prakash Lohia, Lord Swraj Paul and family, Anil Agarwal and Ajay Kalsi and family in the top 100.
Further down the list are British Sikh hotelier Jasminder Singh and family at 121st rank with 840 million pounds, Navin and Varsha Engineer at 123rd position with 810 million pounds from their pharmaceuticals business, and the Jatania brothers at 170th with 600 million pounds.
Philip Beresford, who has compiled the list since 1989, said: "I've never seen such a phenomenal rise in personal wealth as the growth in the fortunes of Britain's 1,000 richest people over the past year."