Raza Murad was signed but replaced by Mukesh Acharya.
In the making since 1974.
The film was previously titled "Ek Raaz".
The song "Jalti Saasein Thandi Aahen" proved controversial at the time with Jayshree T seducing Yogita Bali in the song.
The film was launched in 1982 with the title "Raaj Mahal".