The combined wealth of the top 500 individuals was £580.4bn, which is more than the £575.6bn total of all 1,000 richest people a year ago.
2-billion-pound hike in their fortunes over the previous year.
Srichand and Gopichand Hinduja, 81 and 77, lead the pack of 134 UK-based billionaires on the list.
Siblings David and Simon Reuben, 78 and 76 respectively, topped the Rich List in 2016, and rank third this year despite a £900 million rise in their wealth in the past 12 months.
The second spot, occupied by the Hinduja brothers until 2016, has been taken over by Ukrainian businessman Len Blavatnik.
"The astonishing strength of this year's Rich List defies expectations that wealth would stall in the lead up to last summer's European Union referendum and then crash after the decision to leave the European Union", said the newspaper in its editorial.
A record total wealth of £658billion is shared among the richest 1,000 individuals and families, The Sunday Times Rich List has found.
Gopichand Hinduja and Srichand Hinduja
London was also revealed to have more billionaires than any other city in the world, with 86.
They are ranked 133rd on the list with a fortune of £1 billion.
NRI industrialist Lord Swraj Paul's business marked an 80-million-pound dip over a year ago, moving him down to the 194th slot, with an estimated wealth of 660 million pounds.
Interestingly, this year's list has Indian millionaires who have made their money in a variety of industries, including Bhikhu and Vijay Patel in pharmaceuticals (£675 million); Jatania brothers in toiletries and property (£630 million); Southall Travels owners Kuljinder Bahia and family in the travel industry (£420 million); and Tom Singh and family in fashion (£385 million).
Adele consolidated her position as Britain's wealthiest female musician by earning £40 million, taking her total net worth to £125 million.
According to the 2017 Sunday Times Rich List, Three out of a 5 richest people in a United Kingdom are of Indian origins in its 29th edition. The figure in 2016 was £103m.
The list does not count the totality of the income and assets from the Crown Estate - the collection of lands and holdings belonging to the monarch but controlled by an independent board - whose property portfolio alone is now worth £12 billion.
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He said he had also told the chief minister that he would submit the names of those who were involved in the delay to the ACB. He also assured volunteers that the party will not shy away from course correction whenever required.