Hindenburg Research has now said that it is coming up with a new report soon on another target and promised it to be a 'big one'. Hindenburg on January 24, in a report titled Adani Group: How The World’s 3rd Richest Man Is Pulling The Largest Con In Corporate History, alleged following two-year investigation that Rs 17.8 trillion conglomerate Adani Group has engaged in a brazen stock manipulation and accounting fraud scheme over the course of decades.