Question: Nitya Mehra is a director who worked on the Ang Lee film that was based on the 2001 novel by whom?
Context: Timothy S. “Tim” Squyres (born March 29, 1959) is an American film editor with about 30 film credits.  Squyres has had an extended collaboration with the Taiwanese director Ang Lee, having edited all but one of Lee's feature films.  His latest collaboration with Jonathan Demme on the film "A Master Builder" opened in New York during June 2014 and was based on the 19th century play by Henrik Ibsen. Richard Heinrichs is an American production designer, effects artist, art director and film producer.  He is well known for his work on the "Pirates of the Caribbean" series, Ang Lee's "Hulk" and "The Nightmare Before Christmas".  He started his career on visual effects on the other world sequence in "The Watcher in the Woods", Tim Burton's "Hansel and Gretel" and "Vincent" to later work on "Alfred Hitchcock Presents" and "".  He also worked on "Frankenweenie". Pushing Hands () is a film directed by Ang Lee.  Released in 1992, it was his first feature film.  Together with Ang Lee's two following films, "The Wedding Banquet" (1993) and "Eat Drink Man Woman" (1994), it forms his "Father Knows Best" trilogy, each of which deals with conflicts between an older and more traditional generation and their children as they confront a world of change. Baar Baar Dekho (English: "Look Again and Again" ) is a 2016 Indian romantic drama film directed by Nitya Mehra which marks her debut in Hindi cinema.  The film stars Katrina Kaif and Sidharth Malhotra. Life of Pi is a 2012 American survival drama film based on Yann Martel's 2001 novel of the same name.  Directed by Ang Lee, the film's adapted screenplay was written by David Magee, and it stars Suraj Sharma, Irrfan Khan, Rafe Spall, Tabu, Adil Hussain, and Gérard Depardieu.  The storyline revolves around an Indian man named "Pi" Patel, telling a novelist about his life story, and how at 16 he survives a shipwreck in which his family dies, and is adrift in the Pacific Ocean on a lifeboat with a Bengal tiger.  The film had its worldwide premiere as the opening film of the 51st New York Film Festival at both the Walter Reade Theater and Alice Tully Hall in New York City on September 28, 2012. "Life of Pi" is a 2012 American 3D adventure drama film based on Yann Martel's 2001 novel of the same name.  Directed by Ang Lee, the film is based on an adapted screenplay by David Magee, and stars Suraj Sharma, Irrfan Khan, Gérard Depardieu, Tabu, and Adil Hussain. Bonnie Bo (also can be read as Bonnie Bai; traditional Chinese: 柏邦妮; simplified Chinese: 柏邦妮; form name: 张珊珊) was born on 1982.  She is an author and screenwriter.  Bonnie graduated in Literature and reading from Beijing Film Academy.  In 2005 she published a personal collection of essays known as "The Same As Bonnie Love You."  Bo writes for fashion magazine, Interview, and worked as a film critic and columnist from 2003.  She interviewed Maggie Cheung, Gong Li, Ang Lee, Hou Hsiao-hsien and other celebrities.  She worked as a screenwriter for the TV shows "Yan Qing prodigal son", "Flea on the drum when the move" and "Than I love my".  She wrote the screenplay for the movie "Ballad of loess" and part of the 2008 remake of "Dream of Red Mansions". Nitya Mehra is a Bollywood film director and screenwriter.  After working in television and as assistant director in films like Ang Lee's "Life of Pi" and Mira Nair's "The Namesake", and "The Reluctant Fundamentalist", she made her directorial debut with Eros Now's romantic drama "Baar Baar Dekho". Crouching Tiger, Hidden Dragon () is a 2001 Taiwanese television serial based on the novel by Wang Dulu.  It is similar to Ang Lee's 2000 film adaptation but explains the story of the novel more deliberately due to its longer running time.  The serial was released in the United States in 2004 as "New Crouching Tiger, Hidden Dragon" in a two-disc set. Sense and Sensibility is the original soundtrack of the 1995 film of the same name starring Emma Thompson, Hugh Grant, Kate Winslet and Tom Wilkinson.  The original score was composed by the Scottish composer Patrick Doyle, a friend of Thompson's who had worked with her on many previous films.  Director Ang Lee tasked Doyle with creating a gentle score reflecting the emotional suppression of the society featured in the film.  Doyle subsequently created a score which he described as "suppressed" with "occasional outbursts of emotion", in keeping with the film's storyline.
Answer: Yann Martel