The book, published by Random House India, is based on a true story.
"It has taken five years to put it together and I am honoured Random House has picked it up. Releasing October 12, the book is based on a true story and set in the backdrops of UK," Kundra posted on Twitter.
"So, here it is, the moment you have all been waiting for my debut as a writer," he added.
Raj and Shilpa co-own the Indian Premier League (IPL) franchise Rajasthan Royals.
Shilpa was equally excited about the news of the launch of her husband's book.
"So excited to announce my multifaceted husband Raj Kundra's first book. So proud of you my darling. It's called 'How Not To Make Money'. A must read," she added.
