Amitabh Bachchan and Ajay Devgan will star in Ajay Devgn Ffilms’ Mayday. Besides producing, Ajay Devgan will also direct the film which will be a thrilling edge-of-the-seat human drama. While Ajay will play a pilot in the film, Amitabh’s character is being kept under wraps for the time being. Bachchan and Devgan have earlier acted together in Major Saab, Khakee and Satyagraha. The rest of the cast is being finalised. The film will go on the floors in December this year in Hyderabad.