Question: Darshan Kumar appeared in a 2003 movie written by who ?
Context: Mary Kom is a 2014 Indian biographical sports film directed by Omung Kumar and produced by Sanjay Leela Bhansali in association with Viacom 18 Motion Pictures.  The film stars Priyanka Chopra in the lead role of the eponymous boxer, with Darshan Kumar and Sunil Thapa in supporting roles of her husband and mentor, respectively.  "Mary Kom" depicts Kom's journey of becoming a boxer to her victory at the 2008 World Boxing Championships in Ningbo.  The film marks the Hindi playback singing debut of Chopra, who provided her vocals for a song named "Chaoro" (a lullaby) co-written by Sandeep Singh and Bijou Thaangjam. Tere Naam (English: "In your name" ) is a 2003 Indian Hindi-language romantic drama film.  It is directed by Satish Kaushik and written by Bala and Jainendra Jain, starring Salman Khan and Bhoomika Chawla in her Hindi film debut.  The film is a remake of Bala's own Tamil blockbuster "Sethu" (1999). Jaanwar (English language: Animal) is an Indian Hindi gangster drama film directed by Suneel Darshan, released on 24 December, 1999.  The film stars Akshay Kumar, Karisma Kapoor and Shilpa Shetty in pivotal roles.  The film was a commercial success and it revived Kumar's career when he was suffering a professional setback.  The movie was remade in 2004 in Bengali as "Mastan". Sandeep Singh is a Bollywood film producer, who founded a film production house under the banner of Legend Studios.  Along with Omung Kumar, He is all set to release Sarbjit starring Aishwarya Rai Bachchan , Randeep Hooda, Richa Chadha and Darshan Kumar, his first film under his banner. Andaaz (English: "A way" ) is a 2003 Indian romantic musical film directed by Raj Kanwar and produced by Suneel Darshan.  It stars Akshay Kumar, Lara Dutta and Priyanka Chopra in the lead roles.  The film tells the story of Raj (Kumar) and his romantic relationship with two girls, Kajal and Jiya (Dutta and Chopra).  The music of the film was composed by Nadeem-Shravan with lyrics written by Sameer. "Mary Kom" is a 2014 Indian biographical sports drama film directed by Omung Kumar and produced by Sanjay Leela Bhansali and Viacom 18 Motion Pictures.  The film features Priyanka Chopra in the lead role as the boxer Mary Kom, with Darshan Kumar and Sunil Thapa in supporting roles as her husband and mentor, Onler Kom and M. Narjit Singh respectively.  The film was written by Saiwyn Quadras, with the cinematography provided by Keiko Nakahara while Bhansali co-edited the film with Rajesh G. Pandey.  The film follows Kom's journey of becoming a boxer to her victory at the 2008 World Boxing Championships in Ningbo, China. Sarbjit is a 2016 Indian biographical drama film directed by Omung Kumar.  The film features Aishwarya Rai as Dalbir Kaur and Randeep Hooda portrays the title role Sarabjit Singh, an Indian man who was sentenced to death by the Supreme Court of Pakistan in 1991 and who consequently spent 22 years in prison for alleged terrorism and spying while Richa Chadda and Darshan Kumar play supporting roles. Darshan Kumar is an Indian actor who appears primarily in Bollywood films.  He made his debut with the film "Mary Kom" (2014) opposite Priyanka Chopra, as a male lead.  Previously, He also appeared in the 2003 Salman Khan starrer movie "Tere Naam" as one of the friends of Radhe. Darshan Kumar Khullar is an Indian mountaineer, writer and a former brigadier of the Indian Army.  He led the Everest expedition which included Bachendri Pal and Phu Dorjee that summitted the peak in May 1984.  The Government of India awarded him the fourth highest Indian civilian honour of Padma Shri in 1984. Paigham ("Message") is a 1959 Hindi film produced and directed by S. S. Vasan.  The film stars Dilip Kumar, Vyjayanthimala, Raaj Kumar, Saroja Devi, Motilal, and Johnny Walker.  The film's music is by C. Ramachandra.  This was the first time Dilip and Raaj Kumar appeared in a film together.  (They later appeared together once again over three decades later for the 1991 film "Saudagar").
Answer: Bala and Jainendra Jain