The social movie Yaar Kasam was released in the year of 1985 under the banner of Narmada Finc Pvt Ltd. The movie was directed by K Prasad and Sudhakar Sharma. The major roles in the movie were enacted by Raj Babbar, Anita Raaj, Zeenat Aman and Marc Zuber while the roles of Shakti Kapoor, Iftekhar, Chand Usmani, Rajan Haksar, Dinesh Hingoo, Renu Joshi and Lalita Kumari were equally important. The music of the film was directed by Usha Khanna and Kishore Sharma while the songs were sung by Asha Bhosle, Hariharan, Usha Khanna, Manhar Udhas and Suresh Wadkar.

The movie Yaar Kasam was a social film that was liked by most of the people and was rated as a good movie of its time. The movie was directed as a joint production of K Prasad and Sudhakar Sharma, both of whom are new directors. While Prasad has directed movies like Zulm Ka Badla and Kanoon Meri Mutthi Mein earlier, Sudhakar Sharma directed a movie titled Gori released in 1992 later on. The movie was his first film as a director.

The male lead in the film was played by the famous actor Raj Babbar who has given many hit movies like Umrao Jaan released in 1981, Angaarey released in 1986, Aulad Ke Dushman released in 1993 while his first movie as a actor was Kissa Kursi Ka released in 1977. The female lead was played by Zeenat Aman who acted in many hit movies earlier like Hare Rama Hare Krishna, Satyam Shivam Sundaram Ameer Admi Garib Admi while her first movie was Hulchal released in 1971.

The songs of the movie are:
1.    Aa mansa meri laaj rakh de
2.    Kahe saarangi suno balamji
3.    Khuda dosti ko nazar na lage
4.    Maaf karna mere yaar
5.    Manjeere mridung baaje