The film was originally titled "Murdaa".
The song " Murga Hua Deewana" was a remake of the song " Baithak Gana, Parosein Apni Mugi" by Harridath Jairam ( South American born Indian artiste.). Amitabh heard the song in Holland and loved it. He then purchased the song from Harridath. In 1986 the song had another version called "Padosi Tere Murgee" was in the film Main Balwaan. The song was not in the film. Bappi Lahiri's song "Tere Kurte Ka Button Ban Ke Baby" ("Khooni Murdaa", 1990) also had the same tune as the mukhda of this song. It is possible that both songs were inspired by the same folk song.
Remake of Nightmare on Elm Street.
Remade as Murdaa in 2000.
Raj Babbar and Hemant Birje were signed to play the lead and later opted out.