Question: Who directed the film that is loosely based on Mahavir Singh Phogats life?
Context: Ricky 6 is a 2000 film loosely based on the life of Ricky Kasso, a suburban teenager accused of Satanism and murder in the 1980s.  The film was written and directed by Peter Filardi.  Vincent Kartheiser played the disturbed protagonist, renamed Ricky Cowen, in the film.  The movie also stars Chad Christ, Patrick Renna, Sabine Singh and Emmanuelle Chriqui.  Matthew Morin plays the daycare boy. Sur – The Melody of Life is 2002 Hindi film starring Lucky Ali and Gauri Karnik in the main leads.  Its co-stars are Simone Singh, Achint Kaur, Ehsaan Khan, Divya Dutta, Nitin, and Harsh Vashisht.  This movie is loosely based on a 1992 Telugu musical hit film "Swati Kiranam". Mahavir Singh Phogat, trainer father and uncle of Phogat sisters, is an Indian amateur wrestler and senior Olympics coach.  Indian biographical film "Dangal" is loosely based on Singh's life. Dangal (English: "Wrestling competition" ) is a 2016 Indian Hindi-language biographical sports drama film loosely based on the story of Mahavir Singh Phogat, an amateur wrestler, who trains his daughters Geeta Phogat and Babita Kumari to be world-class wrestlers.  It was directed by Nitesh Tiwari.  Produced by Walt Disney Pictures, Aamir Khan Productions and UTV Motion Pictures, it stars Aamir Khan as the father.  Both daughters go on to win medals at the 2010 Commonwealth Games.  Babita won a silver medal at the Games, in the 51 kg class and gold at the 2014 Glasgow Games in the 55 kg class.  In 2012, Geeta became the first Indian female wrestler to qualify for the Olympics.  Mahavir's efforts inspired dozens of Indian women to take to wrestling.  Fatima Sana Shaikh and Sanya Malhotra play the older selves of the sisters while Sakshi Tanwar plays their mother and Aparshakti Khurana, their cousin. Ek Hasina Thi (English: "There was a beautiful woman") is a Crime thriller television series created by Cinevistaas Limited for the channel Star Plus from 14 April 2014 to 20 December 2014.  Produced by Prem Krishen, "Ek Hasina Thi" is loosely based on the American series "Revenge".  The series has Sanjeeda Sheikh and Vatsal Sheth as leads, and, Simone Singh and Ayub Khan in supportive roles.  The show is set in Kolkata, but is filmed in Mumbai.  The series was earlier titled "Daag". The show was acclaimed by critics and viewer and it was one of the most successful show of Star Plus at that time. Simone Singh's performance has been lauded. K2 is a 1991 motion picture loosely based on the story of two friends' ascent of the second-highest mountain on Earth, K2.  The story is based on a play written by Patrick Meyers and presented as a senior thesis at Stanford University.  The film was directed by Franc Roddam, and written by Meyers and Scott Roberts, adapting Meyers' original stage play.  The two main characters of the film, Taylor Brooks (played by Michael Biehn) and Harold Jameson (played by Matt Craven), are loosely based on Jim Wickwire and Louis Reichardt, respectively, the first two Americans to summit K2 in 1978.  Wickwire and Reichardt are acknowledged in the ending credits. Just Mohabbat was a Hindi television drama-series that first aired on Sony TV channel in 1996.  The series was directed by Tony and Deeya Singh.  The story revolved around the life of Jai (played by Harsh Lunia and later Vatsal Sheth), a kid who stays in a hostel in Dehradun away from his parents Raj (played by Salim Shah) and Maya (played by Kavita Kapoor).  The series chronicles his growing up years and focuses on his relationships with his family and friends, specially his friends Madhur, Roma and Sanjay and his imaginary friend Gautam (played by Aditya Kapadia).  This is loosely based on The Wonder Years. Shool (English: "The Thorn") is a 1999 Indian action crime drama film written, and produced by Ram Gopal Varma.  Directed by Eeshwar Nivas, with screenplay by Ram Gopal Varma, the film portrays the politician-criminal nexus and the criminalization of politics in the Indian state of Bihar, and its effect on the life of an honest police officer.  The film starred Manoj Bajpayee as Inspector Samar Pratap Singh and Sayaji Shinde as the borderline psychopath criminal-politician Bachhu Yadav, a character loosely based on politician turned criminal, Mohammad Shahabuddin.  The soundtrack consisting of "Main Aayi Hoon U.P. Bihar Lootne" featuring Shilpa Shetty became a chartbuster. "The rights to this film are owned by Shah Rukh Khan's Red Chillies Entertainment. Captain India is an upcoming computer-animated film.  In this film Yuvraj Singh has given his voice, and the fantasy story is loosely based on the life of this cricketer.  It is directed by Manny Bains & produced by Brendan Shaw, of Motion Pixel Corporation, Miami, USA, in combination with Cornerstone Entertainment of India. Fatima Sana Shaikh is an Indian actress and photographer.  She mainly appears in Bollywood movies and television serials.  She is best known for her role as baby girl Bharti in "Chachi 420".  In her most recent role, she plays Geeta Phogat, an Indian wrestler and Mahavir Singh Phogat's (played by Aamir Khan) daughter in the Bollywood film "Dangal".
Answer: Nitesh Tiwari