Kalyug was a social drama released on March 28, 1981. The movie was directed by Shyam Benegal. The major roles in the movie were played by Shashi Kapoor, Raj Babbar, Rekha and Kulbhushan Kharbanda while the roles of Anant Nag, Amrish Puri, A.K. Hangal, Om Puri and Sushma Seth were equally important. The songs of the movie were sung by Preeti Sagar.

Kalyug was a social film that showcased the life of the modern people and how they have changed for bad so far over the years. The movie was directed by Shyam Benegal who has directed movies like A Child of the Streets released in 1967, Nishaant released in 1975 and Suraj Ka Satvan Ghoda released in 1993 while his first film as a director was Gher Betha Ganga released in 1962. He has also produced movies like Sardari Begum released in 1996 and Susman released in 1987.

The male lead in the film was played by Shashi Kapoor who has acted in movies like Ram Darshan released in 1950, Holiday In Bombay released in 1963 and Roti Kapada Aur Makan released in 1974 while his first film as an actor was Tadbir released in 1945. The female lead in the movie was played by Rekha who has also provided Bollywood with many hit movies. She made her debut with the movie Neela released in 1935. She has also sung the songs for various movies.

The songs of the movie are:
1.    Kya Hai Tera Gham Bata