Faissal Khan, the brother of superstar Aamir Khan, is set to make his directorial debut with action-thriller "Factory". Faissal has previously served as an assistant director on films such as "Qayamat Se Qayamat Tak" and "Jo Jeeta Wohi Sikander" with Mansoor Khan, and "Tum Mere Ho" with his late father Tahir Hussain.