of the Vayuputras had about 350,000 copies for pre-order, with an initial print-run of 500,000 copies. On the first day of the release itself, the book sold the initial print-run breaking the record for the fastest selling book in India. This prompted Westland to pay Tripathi an advance amount of for the next series that he would pen, even though Tripathi confessed that he did not have any idea regarding the subject that he would pursue for his next endeavor. Padmanabhan clarified that the advance included the book, audio and e-publishing rights for Tripathi's next series, and was only for the South-Asian region and "It's the largest advance we've ever paid, and the largest Indian deal". Anuj Bahri, who was the first publisher for The Immortals of Meluha, said that the deal could go up to US$4 million once they acquire the film, foreign and translation rights for the books. As of June 2015 over 2.5 million copies of the Shiva Trilogy have been sold with gross retail sales of over , making it the fastest selling book series in the history of Indian publishing. References External links Shiva Trilogy — Official website The Oath of the Vayuputras at Westland Press Like A Rhino Cowboy – Excerpt at Outlook India 2013 Indian novels 2013 fantasy novels Hindu mythology in popular culture Westland Books books Jo Fletcher Books books