Hostel is a 2011 Bollywood movie by Manish Gupta.
 The film explores the psychology of ragging (hazing/initiation) and its disastrous effects on a student’s psyche.
 It was directed by writer-director Manish Gupta who scripted "Sarkar" (2005) and directed "The Stoneman Murders" (2009).
Manish Gupta is an Indian director and writer in Bollywood.
 He has written the film "Sarkar" and has directed the film "Rahasya".
Karma Aur Holi is a Bollywood drama film written and directed by débutante Manish Gupta.
Jasper Joseph Inman Kane (March 19, 1894, San Diego – August 25, 1975, Santa Monica, California) was an American film director, film producer, film editor and screenwriter.
 He is best known for his extensive directorship and focus on Western films.
Arjun – Kalimpong E Sitaharan is a 2013 thriller Bengali film directed by Prem Prakash Modi and produced by Mukul Sarkar under the banner of T. Sarkar Productions.
 The film features actors Om and Sabyasachi Chakraborty in the lead roles.
 This action and thriller marks the debut of young Bengali actor Om in the role of detective Arjun.
 Based on "Sitaharan Rahasya" and "Khunkharapi" by Samaresh Majumdar, the film was released on 3 May 2013.
D is a 2005 Indian crime drama-thriller film, directed by Vishram Sawant, co-written by Manish Gupta, and Ram Gopal Varma.
 Produced by Varma and Ronnie Screwvala, it was released in India on 3 June 2005.
 It is the third film in the "Gangster" film series.
Rahasya (English:"Mystery") is a 2015 Indian murder mystery film which is directed by Manish Gupta.
 The film stars Kay Kay Menon, Tisca Chopra, Ashish Vidyarthi, Mita Vashisht and Ashwini Kalsekar.
 The film was inspired by the Aarushi murder case, which was met with some criticism by Rajesh and Nupur Talwar.
Le Chakka (Bengali: লে ছ্ক্কা ; English: Take a Sixer ) is a 2010 Bengali-language sports comedy film written by Padmanava Dasgupta and directed by Raj Chakraborty.
 The film stars Payel Sarkar and Dev as the lead pair of the film along with the talented bunch of actors like Kharaj Mukherjee, Ritwick Chakraborty, Biswajit Chakraborty, Aritra Dutta Banik, Deepankar De, Laboni Sarkar, Biswanath Basu, Debjani Chattopadhyay and Padmanava Dasgupta himself to name a few.The film's score and soundtrack were composed by Indraadip Das Gupta.
The film is a remake of the Tamil movie Chennai 600028.
MG English International Sr.
 Sec.
 School Bagru is a senior secondary level non profit-making institute in Bagru, Jaipur in the State of Rajasthan, India.
 It was founded by Manish Gupta.
 It is located at Link Road, Bagru, Jaipur.
 The Director is Manish Gupta.
The Stoneman Murders is a 2009 Indian Suspense Thriller film based on the real life Stoneman serial killings that made headlines in the early 1980s in Bombay.
 The hapless victims of the mystery killer, who was never caught, were footpath dwellers in Bombay.
 They were stoned to death in their sleep.
 The movie weaves fiction around reality in an attempt to provide answers to the questions around the case.
 "The Stoneman Murders" was director Manish Gupta's first full-length feature film.

Question: Which director, Joseph Kane or Manish Gupta, wrote the film "Sarkar" and directed the film "Rahasya".
Answer: Manish Gupta