Karan Johar's Dharma Productions has reportedly fired actor Kartik Aaryan from their upcoming project 'Dostana 2'. Reports are the actor has been dropped from the film due to his unprofessional behaviour. According to a report in a leading entertainment portal, a source close to the production house confirmed they are replacing the actor in the sequel and Dharma or any other film business of Karan has vowed never to work with Kartik again.