question: Who is the author of the novel that had a movie based on it and contained the song "Thodi Der"?
answer: Chetan Bhagat
context: Title: Half Girlfriend (film)
  Passage: Half Girlfriend is an Indian romantic drama film based on the novel of the same name written by Chetan Bhagat.  The film is directed by Mohit Suri and features Arjun Kapoor and Shraddha Kapoor in the lead roles.
  Title: Thodi Der
  Passage: "Thodi Der" (English dub: Stay a Little Longer) is a popular song from the soundtrack of the Bollywood film Half Girlfriend.  The song was composed by Pakistani singer Farhan Saeed, who originally performed the song (titled "Tu Thodi Dair")) with established Indian singer Shreya Ghoshal.
  Title: McHale's Navy Joins the Air Force
  Passage: McHale's Navy Joins the Air Force is a 1965 movie based upon the television 1962–66 sitcom "McHale's Navy".  Series supporting players Joe Flynn and Tim Conway are the leads for this sequel to the first movie made in 1964 also named "McHale's Navy".  Most of the movie is based on their two characters particularly Ensign Parker.  Series star Ernest Borgnine was unavailable due to a scheduling conflict while he appeared in the 1965 movie "The Flight of the Phoenix".  However, in a "Cinema Retro" interview, Borgnine said the producer Edward Montagne wanted to make the film cheaply, without him and would not show him the script.  Carl Ballantine also doesn't appear in the movie and the PT-73 crew is not seen in large portions of the film.  The movie, which also features Ted Bessell and Gavin MacLeod, was directed by series producer Edward Montagne.
  Title: The Salt Prince
  Passage: The Salt Prince (Slovak: "Soľ nad zlato", Czech: "Sůl nad zlato", German: "Der Salzprinz", Italian: "Il Solto Prinzzo") is a Slovak fairy-tale movie based on a novel by Pavol Dobšinský.  The movie's central lesson is that salt, as it is necessary for life, is more precious than gold and emeralds.
  Title: James Bowen (author)
  Passage: James Bowen (born 15 March 1979, Surrey) is an author and busker based in London.  His books "A Street Cat Named Bob", "The World According to Bob" and "A Gift from Bob", written with author Garry Jenkins were international best-sellers.  A movie based on the first novel was released in 2016.  Bowen now dedicates his time to help numerous charities that involve homelessness, literacy, and animal welfare.
  Title: Hank Zipzer's Christmas Catastrophe
  Passage: Hank Zipzer's Christmas Catastrophe is a 2016 stand alone British Christmas movie based on the Hank Zipzer series of books by Henry Winkler and Lin Oliver and the TV series airing on CBBC.  The film will be airing on CBBC on 12 December 2016.  It is written by Joe Williams and is directed by Matt Bloom.  The film is produced by Kindle Entertainment in association with Walker Productions and DHX Media with support from Screen Yorkshire’s Yorkshire Content Fund.  It is the fourth movie based on a CBBC programme after "", "Shaun the Sheep Movie" and "".  It is the second movie based on a CBBC show, which has not been released in cinemas and only shown on TV after ""
  Title: Gioconda Vessichelli
  Passage: Gioconda Vessichelli (born in Rome, Italy) is an opera singer.  Gioconda is the inventor and pioneer of BollywoOPERA style.  She has sung in the Bollywood movie "Prague "in 2013, and she has given her voice for the Bollywood movie "Mary Kom" on the song "Ziddi dil" together with Vishal Dadlani.On 19th May 2017 her song "Itni si baat hai" has been released by the label T-series.  On 20 December 2014 the song "Thodi Daaru" was released featuring Mika Singh.  Gioconda has done live performances as first fusion ever between opera and classical Hindi music with artists of the caliber of Grammy Award winner Sukhwinder Singh, Hari Haran, Gino Banks, Niladri Kumar, Silvaganesha, in festivals and auditoriums like Nehru Centre[20] in Mumbai.  She collaborates with Anup Jalota, and many others.  On 31 March 2016 her international video "We are one" in which she sings and acts together with Anup Jalota for peace in the world has been launched from the Minister of India in Delhi.  She is in the annual book of Italian opera singer for having sung in the first world edition of contemporary opera at "Teatro comunale di Modena", broadcast on Italian state radio RAI.  Gioconda is the first singer in the premiere world ever of the contemporary opera “Lavinia fuggita” by Matteo d’Amico.  She has two degrees in opera singing and musicology from Italian conservatory "Santa Cecilia" and international high school of opera "H.Wolf".  The tenor Luciano Pavarotti has been her teacher, among other opera singers who selected her as one of the best students.  She was selected as best singer at accademia rossiniana in Pesaro and she debuts the role of "Madama cortese" in "il viaggio a Reims" by Rossini with the symphonic orchestra of Rof at Rossini theatre in Pesaro.  She sings again in a Rossini opera at Ercolano international opera season in "Il barbiere di Siviglia" and at teatro Politeama opera season in Lecce.  After Rossini she debuts "Carmen" by Bizet.  Her interpretation of the role "Mimì" in the opera "La Boheme" by Puccini received positive critiques.
citations: Thodi Der Half Girlfriend (film)