Actor Karan Mehra has accused his estranged wife Nisha Rawal of having an extramarital affair with a man named Rohit Satia, who posed as her 'rakhi brother' and also performed her 'kanyadaan'. "He's staying at my house with Nisha," Karan said, adding that his son also stays with them, which is morally questionable. Karan claimed Rohit had "physically assaulted" him.