Indian filmmaker Karan Johar is finally ready to start shooting his latest Bollywood blockbuster 'Kabhi Alvidaa Na Kehna'. The project has faced various delays, but the director is raring to get started. Filming will begin within this week in Mumbai with the all-star cast, including Shah Rukh Khan, Amitabh Bachchan, Rani Mukherjee, Preity Zinta and Abhishek Bachchan. The cast and crew will later travel to New York, where the film is set.