Question: What relationship does the director of "Dilwale Dulhania Le Jayenge" have with Yash Chopra?

Context paragraphs:
Devdas (2002 Hindi film): Devdas is a 2002 Indian romantic drama film directed by Sanjay Leela Bhansali and based on the 1917 Sharat Chandra Chattopadhyay's novel "Devdas".  This is the third Hindi version and the first film version of the story in Hindi done in colour.  The film follows Devdas (Shah Rukh Khan), a wealthy law graduate in the early 1900s, who returns from his studies in London to marry his childhood sweetheart, Paro (Aishwarya Rai).  However, the rejection of this marriage by his own family sparks his descent into alcohol, ultimately leading to his emotional deterioration and him seeking refuge with a prostitute, Chandramukhi (Madhuri Dixit Nene).  The film was screened at 2002 Cannes Film Festival and was also screened retrospective, during the 2014 International Film Festival of India in the "Celebrating Dance in Indian cinema" section.  "Devdas" won the Filmfare Award for Best Film.  The film also won five National Awards and a further ten Filmfare Awards, tied with "Dilwale Dulhania Le Jayenge" with the most Filmfare Awards any film had won at the time (later beaten in 2005 by Bhansali's "Black").

Shah Rukh Khan filmography: Shah Rukh Khan (also credited as Shahrukh Khan) is an Indian actor, producer and television personality.  Khan began his acting career on television by playing a soldier in the Doordarshan series "Fauji" (1988), a role that garnered him recognition and led to starring roles in more television shows.  He soon started receiving offers for film roles and had his first release with the romantic drama "Deewana" (1992), in which he played a supporting part.  Khan subsequently played the antagonist of the 1993 thrillers "Baazigar" and "Darr", box office hits that established his career in Bollywood.  In 1995, Khan starred opposite Kajol in Aditya Chopra's romance "Dilwale Dulhania Le Jayenge", that became the longest running Indian film of all time.  He continued to establish a reputation in romantic roles by playing opposite Madhuri Dixit in "Dil To Pagal Hai" (1997), and Kajol in the Karan Johar-directed blockbusters "Kuch Kuch Hota Hai" (1998) and "Kabhi Khushi Kabhie Gham..." (2001).

Jatin–Lalit: Jatin–Lalit are a Bollywood film composer duo consisting of Jatin Pandit and his younger brother Lalit.  They have written the scores for films such as "Khiladi", "Jo Jeeta Wohi Sikandar", "", "Dilwale Dulhania Le Jayenge", "Yes Boss", "Jab Pyaar Kisise Hota Hai", "Kuch Kuch Hota Hai", "Mohabbatein", "Kabhi Khushi Kabhi Gham" and "Fanaa" .

Dilwale Dulhania Le Jayenge: Dilwale Dulhania Le Jayenge (English: "The Big-Hearted Will Take Away the Bride" ), also known by the initialism DDLJ, is an Indian romance film written and directed by Aditya Chopra (In his directorial debut) and produced by his father Yash Chopra.  Released on 20 October 1995, the film stars Shah Rukh Khan and Kajol.  The plot revolves around Raj and Simran, two young non-resident Indians, who fall in love during a vacation through Europe with their friends.  Raj tries to win over Simran's family so the couple can marry, but Simran's father has long since promised her hand to his friend's son.  The film was shot in India, London and Switzerland, from September 1994 to August 1995.

Manmohan Singh (film director): Manmohan Singh is film director of Punjabi films and noted cinematographer of Bollywood films.  He frequently collaborated with Yash Chopra, for whom he shot "Chandni" (1989), "Darr" (1993), "Dilwale Dulhania Le Jayenge" (1995), "Dil To Pagal Hai" (1997), and "Mohabbatein" (2000).  Besides his Bollywood career as a cinematographer, he is also known as a pioneering director in Punjabi cinema.  He directed his first Hindi film, "Pehla Pehla Pyar" in 1994 and first Punjabi film Jee Ayan Nu in 2003.

Dil To Pagal Hai: Dil To Pagal Hai (English: "The Heart Is Crazy"), also known as DTPH, is a 1997 Indian musical, romantic drama film directed by Yash Chopra.  The film depicts the love lives of the dancers in a musical dance troupe.  It stars Shah Rukh Khan, Madhuri Dixit and Karisma Kapoor in lead roles, with Akshay Kumar in a supporting role.  It was Khan's third collaboration with Yash Raj Films after "Darr" (1993) and "Dilwale Dulhania Le Jayenge" (1995).  The soundtrack was composed by Uttam Singh, while the lyrics were written by Anand Bakshi.  The film was screened retrospective, during the 2014 International Film Festival of India in the "Celebrating Dance in Indian cinema" section.

Yash Raj Films: Yash Raj Films (YRF) is India's foremost multi-national movie, media and entertainment conglomerate, established by Yash Chopra, an Indian film director and producer who was considered an entertainment mogul in India.  His elder son Aditya Chopra took charge of the studio in 1995 and he started directing, writing & producing multiple movies under the YRF banner.

Kajol filmography: Kajol is an Indian actress who is known for her work in Bollywood films.  She made her screen debut in the 1992 film "Bekhudi", a commercial failure.  She, however, was noted for her performance and went on to sign the 1993 commercially successful thriller "Baazigar" opposite Shah Rukh Khan.  She starred in the 1994 film "Udhaar Ki Zindagi", which earned her critical acclaim.  This was followed by a role in "Yeh Dillagi" alongside Akshay Kumar and Saif Ali Khan.  Kajol featured in five films in 1995.  She appeared briefly in the thriller "Karan Arjun", and played Simran, an NRI in Aditya Chopra’s romance "Dilwale Dulhania Le Jayenge", both of which ranked among the highest-grossing Bollywood films of the year, and the success of the latter established her career in Bollywood.  As of 2014, "Dilwale Dulhania Le Jayenge" is the longest running Indian film.  Also in 1995, she appeared in the box-office flops "Hulchul" and "Gundaraj".  Her only screen appearance of 1996 was in "Bambai Ka Babu", a financial failure.

Aditya Chopra: Aditya Chopra (born 21 May 1971) is an Indian film director, producer, screenwriter, broadcast producer and distributor.  His work as a director includes "Dilwale Dulhania Le Jayenge" (1995), "Mohabbatein" (2000), "Rab Ne Bana Di Jodi" (2008) and "Befikre" (2016).

Mohabbatein: Mohabbatein (English: "Love Stories" ) is a 2000 Indian musical romantic drama film directed by Aditya Chopra.  It was Chopra's second directorial venture after "Dilwale Dulhania Le Jayenge" and was filmed at India and the United Kingdom.  The film stars Amitabh Bachchan and Shah Rukh Khan in pivotal roles, along with six young debutantes.  Aishwarya Rai appeared in flashbacks as Khan's lover.  The film's soundtrack was composed by Jatin-Lalit, while the lyrics were penned by Anand Bakshi.  The film is notable for being the first time that Bachchan and Khan appeared on-screen together.

Supporting paragraphs: Yash Raj Films Aditya Chopra
Answer: elder son