Ajay Devgn, in an upcoming episode of 'Koffee With Karan', took host Karan Johar's name on being asked to name a 'sworn enemy'. Karan asked Ajay, "Do you have...sworn enemy in..industry and..if it is, who?" to which he replied, "Once upon a time...you." They reportedly had an argument when their films 'Shivaay' and 'Ae Dil Hai Mushkil' clashed in 2016.