Aalaap Raju (born 6 June 1979) is a playback singer and a bass player from Chennai, India.
 His rendition of Enamo Aedho from the movie "Ko" composed by Harris Jayaraj topped the music charts for several months in 2011 and won him the Filmfare Award for Best Male Playback Singer – 2011.
 He has sung for music directors like Harris Jayaraj, Thaman, G.V Prakash, Deepak Dev, D.Imman, and Sreekanth Deva.
 His other noticeable songs include Vaaya moodi summa iru da from Mugamoodi, Engeyum Kadhal from Engeyum Kadhal, Endhan Kann Munnae from Nanban, Kadhal Oru Butterfly and Akila Akila from Oru Kal Oru Kannadi, Anjana Anjana from Vandhan Vendran, Kuthu Kuthu from Ayyanar, Endhuko Yemo from Rangam, Nenjodu Cherthu from Yuvvh, Theeyae Theeyae from Maattrraan, Jal Jal Osai from Manam Kothi Paravai, and Maya Bazaar from Ennai Arindhaal.
K. T. Kunjumon (Tamil: கே.டி.குஞ்சுமோன் ; born on 15 November 1953) is a Tamil film producer and writer.
 He began his career co-producing several Malayalam films, often working with director P. G. Viswambharan.
 Among his Tamil film projects, Shankar's first venture, "Gentleman" (1993), was his first major successful venture and set several records for Tamil film production.
 His subsequent films, "Kaadhalan" (1994) and "Kadhal Desam" (1996) were also successful, while "Ratchagan" (1997) became the most expensive Tamil film ever made on release.
Prabhu Deva (born 3 April 1973) is an Indian dance choreographer, film director, producer and actor, who has worked in Tamil, Telugu, Hindi, Malayalam and Kannada films.
 In a career spanning twenty five years, he has performed and designed a wide range of dancing styles and has garnered two National Film Awards for Best Choreography.
Hansika Motwani is an Indian actress who predominantly appears in Tamil and Telugu films.
 She made her film debut in the Telugu film "Desamuduru" (2007), winning the Filmfare Award for Best Female Debut – South.
 She then appeared in a couple of high-budget Telugu films, including "Kantri" (2008) and "Maska" (2009).
 She started her career in Tamil cinema with "Mappillai" (2011) and then appeared in several commercially successful Tamil films including "Engeyum Kadhal" (2011), "Velayudham" (2011), "Oru Kal Oru Kannadi" (2012), "Theeya Velai Seiyyanum Kumaru" (2013), "Maan Karate" (2014), "Aranmanai" (2014), "Manithan" (2016) and "Bogan" (2017).
Silambarasan Thesingu Rajendar (born 3 February 1983), often credited as T. R. Silambarasan, Silambarasan, Simbu, or S. T. R., is an Indian film actor, director and playback singer in the Tamil film industry.
 He began his career by playing roles as a child artist in films directed by his father T. Rajendar, before his first lead role in "Kadhal Azhivathillai" (2002), under his father's direction and produced by his mother Usha.
Silambarasan is an Indian film Actor director, producer and singer, who works mainly in the Tamil film industry.
 He began his career playing minor roles as a child artist in films produced by his father T. Rajendar before his first lead role in "Kadhal Azhivathillai "(2002) also produced and directed by his father.
 The film was a commercial failure.
 His second film "Dum" (2003), a remake of the 2002 Kannada film "Appu", fared well commercially.
 In the same year he appeared in "Alai", a box office failure.
Engeyum Kadhal (English: "Love is Everywhere" ) is a 2011 Tamil romantic drama film written and directed by Prabhu Deva that stars Jayam Ravi and Hansika Motwani in the lead roles.
 Featuring music by Harris Jayaraj, it was produced by Kalpathi S. Agoram and released on 6 May 2011 to mixed reviews.
 The story revolves around a girl living in France who falls in love with a boy coming from India.
 According to Upperstall.com the film "seems to be a straight rip off from Billy Wilder's "Love in the Afternoon" starring Gary Cooper and Audrey Hepburn, made way back in 1957".
Antoine Gentien (1905–1968) was a French tennis player.
 He was the son of Antoinette Gillou and the nephew of Kate Gillou.
 Katie was four times French (closed) singles champion.
 Antoine was friends with Suzanne Lenglen.
 He had a long career lasting from 1921 to 1951.
 He won several tournaments in France, but at the French Championships his best result was reaching the quarter finals in 1927.
 He made his Wimbledon debut in 1923 and lost in round one.
 He made his debut at French Open in 1925 and lost in round two.
 He lost in round one at the French in 1926.
 In 1927 Gentien had one of the best wins of his career when he beat Jean Borotra at the French championships, making the Bounding Basque run all over the court and lobbing Borotra if he came to the net.
 Gentien lost in the quarter finals to Pat Spence.
 Gentien lost in round two of Wimbledon.
 At the first French Open held at Roland Garros in 1928, Gentien lost in the last 16 to Jack Crawford.
 He lost in round one of Wimbledon.
 He lost early at Roland Garros and Wimbledon in 1929 and Roland Garros in 1930.
 He lost in round three of Roland Garros in 1931 and reached round three of Wimbledon, where Fred Perry beat him.
 Perry beat him in an early round at Roland Garros in 1932 and Sidney Wood beat him in round three at Wimbledon.
 In 1933, Gentien reached round three at Roland Garros (losing to Daniel Prenn) and Wimbledon (losing to Crawford).
 At Roland Garros 1934 Gentien lost in round three to Harry Hopman and at Wimbledon lost in round two to Roderich Menzel.
 At Roland Garros in 1935, Gentien lost in round two to Adrian Quist.
 At Wimbledon he lost in round three to Enrique Maier.
 Gentien lost in round one of Roland Garros in 1936, but in 1937 reached the last 16 (losing to Christian Boussus).
 He continued playing at the French championships until 1950.
 Gentien had one of the longest spans ever in the French Open men's singles (Bernard Destremau had a 29 year span between 1934 and 1963).
Kadhal Sukumar is an Indian film director and actor, who has appeared in Tamil language films.
 After working as a comedian in films for a decade, notably in Balaji Sakthivel's romantic film "Kaadhal" (2004), he chose to pursue a career as a film director.
Arjun Menon (born 19 December 1987) is an Indian playback singer and song writer based in New York City, USA.
 He has sung for top music directors including A.R. Rahman, Harris Jayaraj, G.V Prakash etc.
 Arjun started his music career performing Carnatic music as a solo artiste and subsequently performed several shows across the country collaborating with top musicians.
 He sang the re-recording song "Kulu Kulu Venpani Pola" for the movie "Engeyum Kadhal" which was composed and penned by Harris Jayaraj.
 His playblack debut and big break came with the song "Latcham Calorie" from the movie Yaan in 2014.

Question: How long did the career of the director of "Engeyum Kadhal" span?
Answer: twenty five years