Adani's response comes amid a $2.5 billion share sale by its flagship company, which has been overshadowed by the report, which flagged concerns about high debt levels and the use of tax havens.

"This is rife with conflict of interest and intended only to create a false market in securities to enable Hindenburg, an admitted short seller, to book massive financial gain through wrongful means at the cost of countless investors," Adani said in 413-page response late on Sunday.

"All transactions entered into by us with entities who qualify as 'related parties' under Indian laws and accounting standards have been duly disclosed by us."

(Reporting by Aditya Kalra, Aditi Shah and Anirudh Saligrama in Bengaluru; Editing by Kevin Liffey)