shares of adani group companies slumped on friday after a report the us justice department and the securities and exchange commission were examining the company’s communications to investors shares of the flagship adani enterprises 512599 fell 7 as other listed adani companies including adani power 533096 fell as well bloomberg news reported citing a person familiar with the matter that the us attorney’s office in brooklyn has asked institutional investors with large holdings in the india conglomerate about the company’s communications to them after a shortseller report was released the same report cited two people as saying the sec also has a similar inquiry under way adani group said it is not aware of any subpoenas to its investors according to bloomberg adani group shares have slumped since the shortselling firm hindenburg research said it used offshore companies to inflate its share price allegations the company has repeatedly denied last month a panel convened by india’s supreme court said in a preliminary report that it has not found evidence that adani companies have been manipulated abroad while it did say that the market regulator suspects wrongdoing