Akshay Kumar has reportedly joined the cast of Karan Johar's 'Dostana 2'. According to reports, the actor will start shooting for the comedy film from next year. Earlier, Kartik Aaryan was fired from the project due to his "unprofessional behaviour". The upcoming film will be directed by Collin D'Cunha and will also feature Janhvi Kapoor and Abhishek Banerjee.