Mumbai (Maharashtra) [India], April 29 (ANI): Actor Kareena Kapoor Khan, who worked with Hansal Mehta in the upcoming film ‘The Buckingham Murders’, extended warm greetings to the ace director. Taking to Instagram, Kareena shared a monochrome picture featuring herself and the filmmaker engaged in conversation. “Happy birthday @hansalmehta Can’t wait for the Buckingham magic to unfold for us (heart, fist bump, and rainbow emoji),” she wrote in the caption. Starring an excellent ensemble cast of Kareena, Ash Tandon, Ranveer Brar, and Keith Allen, The Buckingham Murders is directed by Hansal Meht…