In an interview, Gulzar Saheb said that songwriting is my profession while writing poetry is my statement of life. Since his childhood, he was writing poems, He was also writing when he worked as a mechanic in a car garage in Bombay. It was during his interactions in the PWA Sunday meetings that lyricist Shailendra and Bimal Roy encouraged him to join films. Initially, he joined Bimal Ray as his assistant and later got a chance to write a song in Bandini (1963)under the composer S D Burman, the song that brought him to notice was 'Mera Gora Rung Le Le' from Bandini.
Gulzar’s first venture as a filmmaker was Mere Apne (1971), It was produced by N C Sippy and directed by him. The film stars Meena Kumari, Vinod Khanna and Shatrughan Sinha in lead roles, In fact, it was the first film of Vinod Khanna as a hero. Before ventured into the direction he wrote dialogues for Biwi Aur Makan(1966), Aashirwad(1968), Khamoshi, and Anand(1969) all directed by Hrishikesh Mukharjee. He also wrote the story, dialogue and screenplay of Guddi, once again directed by Hrishikesh Mukharjee.
His second venture as director was Parichay in 1972.It stars Jeetendra, Jaya Bhaduri; while Sanjeev Kumar, Vinod Khanna, has given special appearances and the music was composed by Rahul Dev Burman. The film was reported to be based on the Bengali novel Rangeen Uttarain by Raj Kumar Maitra and partially inspired by the 1965 movie The Sound of Music.
His third film was Koshish released in Dec 1972. It was inspired by the 1961 Japanese film Happiness of Us Alone. The film was highly acclaimed. he got a National Award for its screenplay and nominated the Filmfare Best Director Award.
The next film he directed was Achanak in 1973, written by Khwaja Ahmad Abbas, and starring Vinod Khanna. Gulzar received a Filmfare nomination as Best Director for this film. Even though Gulzar is an accomplished lyricist, this film did not have any songs in it.The entire film production was completed in 28 days
In 1975, three films under his directions were released. the first released was Aandhi in Feb 1975. The film was an Indian political drama film starring Sanjeev Kumar and Suchitra Sen and directed by Gulzar. At the time it was alleged that the film was based on the life of the then-Prime Minister Indira Gandhi and her relationship with her estranged husband, The film got the Filmfare Award of Best Film and Best Actor award to Sanjeev Kumar.
Khushboo was the next film released in March 1975.it was produced by Prasan Kapoor under the Tirupati Pictures banner, presented by Jeetendra and directed by Gulzar. It stars Jeetendra, Hema Malini, and music composed by R. D. Burman. It was praised as a beautiful film with good acting by Sharmila Tagore, Hema Malini, Asrani and Jeetendra
Mausam was the third film of that year released on 29th Dec 1975. The film starring Sanjeev Kumar and Sharmila Tagore, and directed by Gulzar. It is loosely based on the novel, The Judas Tree, by A.J. Cronin. Sharmila Tagore for her acting received The Silver Lotus Award at the 23rd National Film Festival and the movie was honored by presenting an award for 2nd Best Feature Film. The film received two of eight nominations at the 24th Filmfare Awards. The film also won many other accolades as well.
In 1977 he entered into production also, two films Kitaab and Kinara both produced and directed by him were released, Meera was the third film under his direction released in 1977, all the films couldn't receive well in Box office. Though Meera received critical acclaim.
Angoor was the film released in 1982, in between two insignificant films released under his direction in 1980. Angoor was based on Shakespeare's play The Comedy of Errors. The film starring Sanjeev Kumar and Deven Verma in dual roles, and directed by Gulzar. The film was appreciated by all. Deven Verma got the Filmfare Best Comedian Award.
Machis(1996) was an important film of Gulzar, after the death of R D Burman he made the film with Vishal Bhardwaj as music director for the first time. The film was produced by R. V. Pandit. It stars Chandrachur Singh, Om Puri, Tabu and Jimmy Sheirgill in the lead roles. The film portrays the circumstances surrounding the rise of the Sikh insurgency in Punjab Maachis was a critical and commercial success. Gulzar's direction and the music of Vishal Bhardwaj were strong points.