Sahir Ludhianvi is the pen name of Abdul Hayee (8 March 1921 – 25 October 1980) who is popularly known as Sahir.
 Sahir was an Indian poet and film lyricist who wrote in the Hindi and Urdu languages.
 His work influenced Indian cinema, in particular Bollywood film.
 Sahir won a "Filmfare Award for Best Lyricist" for "Taj Mahal" (1963).
 He won a second "Filmfare Award for Best Lyricist" for his work on "Kabhie Kabhie" (1976) and he was awarded the Padma Shri in 1971.
 On 8 March 2013, the ninety-second anniversary of Sahir's birth, a commemorative stamp was issued in his honour.
Chitralekha is a 1964 historical-philosophical Hindi film, directed by Kidar Sharma, starring Ashok Kumar, Meena Kumari and Pradeep Kumar.
 It was based on 1934 Hindi novel by the same name by Bhagwati Charan Verma about Bijgupta serving under the Maurya Empire and the king Chandragupta Maurya (340 BCE – 298 BCE) and his love for courtesan Chitralekha.
 Films music and lyrics were by Roshan and Sahir Ludhianvi and noted for his songs like, "Sansaar Se Bhaage Phirte Ho" and "Man Re Tu Kaahe".
Paisa Ya Pyaar (English: "Money or Love?" )
 is a 1969 Hindi film directed by Jawar N. Sitaraman.
 The film stars Ashok Kumar, Biswajeet, Mala Sinha, Tanuja and Shashikala in lead role.
 The lyrics were written by Sahir Ludhianvi.
 The film was a remake of Tamil film "Panama Pasama".
Gumrah (Hindi: गुमराह , English: "Astray" ) is a 1963 Hindi film produced and directed by B. R. Chopra.
 The film stars Sunil Dutt, Ashok Kumar, Mala Sinha, Nirupa Roy, Deven Verma and Shashikala.
 The music was composed by Ravi while the lyrics were by Sahir Ludhianvi.
 It was remade in Malayalam as "Vivahita" (1970), starring Padmini, Prem Nazir and Satyan.
 It was also a hit.
 It is really surprising that while Shashikala got Filmfare's award in 'Best Supporting Actress Category', Mala Sinha was totally ignored by Film Fare although her role was equally tough and difficult and she gave her one hundred percent share.
Bahu Begum is a 1967 Hindi film directed by M. Sadiq, and starring Pradeep Kumar, Meena Kumari and Ashok Kumar.
 The film has music by Roshan and lyrics by Sahir Ludhianvi and is known for songs, "Hum Intezaar Karenge Tera Qayamat Tak", sung by Mohammad Rafi and Asha Bhonsle and "Duniya Kare Sawal To Hum" by Lata Mangeshkar.
Bade Sarkar (Big Boss) is a 1957 Hindi romantic action drama film, directed by Kishore Sahu.
 The film was made under the Filmistan banner.
 O. P. Nayyar composed the music for the film and the lyricist was Sahir Ludhianvi.
 The film starred Kishore Sahu, Kamini Kaushal, Durga Khote, Agha, Gope and K. N. Singh.
Datta Naik (12 December 1927 – 30 December 1987), also credited as N. Datta, is a Hindi film music director.
 Born in the then Portuguese colony of Goa, Naik, started his career as an assistant to the legendary music director Sachin Dev Burman in films like "Bahar, Sazaa and Ek Nazar" (1951), "Jaal" (1952), "Jeevan Jyoti" (1953) and "Angarey" (1954).
 His partnership with songwriter Sahir Ludhianvi was popular and successful.
 He died on 30 December 1987.
Kabhi Kabhie (Hindi: कभी कभी, English: "Sometimes") is a 1976 Indian Hindi romantic drama film, produced and directed by Yash Chopra, and starring an ensemble cast of Amitabh Bachchan, Raakhee, Shashi Kapoor, Waheeda Rehman, Rishi Kapoor and Neetu Singh.
 This was Yash Chopra's second directorial film with Amitabh Bachchan and Shashi Kapoor in the lead roles after "Deewaar" and was particularly noted for its soundtrack compositions by Khayyam, who won Filmfare Award for Best Music, while film lyricist Sahir Ludhianvi won the Best Lyricist Award for "Kabhi Kabhie Mere Dil Mein," the song which also got singer Mukesh, the Best Male Playback Singer award.
"Kabhi Kabhie Mere Dil Mein" (Urdu: کبھی کبھی میرے دل میں, Hindi: कभी कभी मेरे दिल में खयाल आता है, English: 'Sometimes.
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in My Heart') is a song from 1976 Bollywood movie "Kabhi Kabhie" (English title: Sometimes...) directed by Yash Chopra.
 The title song of the film written by Sahir Ludhianvi was performed by Mukesh.
Hamraaz ("English: Confidant") is a 1967 Hindi film of the suspense thriller genre, produced and directed by B. R. Chopra, and written by Akhtar ul Iman.
 The film stars Sunil Dutt, Raaj Kumar, Mumtaz, Vimi, Sarika, Madan Puri, Iftekhar, Balraj Sahni, Jeevan and Helen.
 The film's music is by Ravi, while the lyrics were penned by Sahir Ludhianvi.

Question: What is Sahir Ludhianvi known for?
Answer: Sahir was an Indian poet and film lyricist