Vijay Mallya's net worth has dropped by $50 million in the last year to $750 million, mainly owing to his beleaguered venture-Kingfisher Airlines, which has not flown since last October.
The flamboyant Mr Mallya's ranking in Forbes' rich list has also come down 11 places to 84th position
In Forbes' latest list of 100 richest released today, Mr Mallya is ranked at 84th position in 2013, a drop from 73rd place in the preceding year. Last year, Mr Mallya had a fortune of $800 million.
Earlier in March this year, Mr Mallya was dropped from Forbes' global rich list, while he had moved out of the billionaire league last year itself.
Mallya is ranked at 84th position in Forbes' list of 100 richest men in 2013
Burdened with huge losses and large debts, Kingfisher Airlines stopped flying in October 2012 and its flying licence also lapsed about two months later.
A stake sale in his group firm United Spirits to Diageo and rising shares of United Breweries, a beer venture with Heineken "have kept this one-time billionaire afloat," Forbes said in its latest list.
"Staff at his shuttered carrier Kingfisher Airlines, which owes banks over $1 billion, have not been paid in 15 months. But he has not given up efforts to sell the airline. This summer he hosted a house-warming party at his new digs in London," the magazine added.
Forbes India had said in October 2012 about Mr Mallya that the 'King of good times' is having nothing but bad times lately.
A day after Forbes India Rich List of 2012 had put his net worth at below $1 billion, Mr Mallya had tweeted that he was thankful to the "Almighty" for being out of the billionaires' club.
"Thanks to the Almighty that Forbes has removed me from the so-called Billionaires list. Less jealousy, less frenzy and wrongful attacks," he had posted on the micro-blogging site.