Though Nayar is a businessman, it is believed that Hurley, who announced that she separated from Nayar months ago, is richer than her husband and the absense of a pre-nuptial agreement means that Nayar could claim for a piece of her money, the Daily Mail reported.
Former model announced the breakdown of her three-year-old marriage to the Indian tycoon after she was caught kissing Australian cricketer Shane Warne, who is said to be her latest flame.
"A pre-nup would have been a deal-breaker for Arun. He has his pride," a source told the newspaper.
Hurley thanked her fans for their support on her twitter page, saying : "Painful, sad days. Arun & I separated for private reasons but FTR he has been a great father to our son Damian & will always be in his life (sic)."
Warne too confirmed his single status on his website. Hurley has invested most of her fortune into property. She is the sole owner of the sprawling 4.3 million pound farmhouse where she and Nayar live in Gloucestershire, and her 2.5 million pound Chelsea townhouse is still jointly owned by her and her ex-boyfriend Hugh Grant.
Although Nayar comes from a wealthy family in India, analysis of his finances suggests much is dependent on future inheritance.
He has declined to comment on the breakdown of his marriage.