There was a shelved movie "Kohra -The Mist" (1982) Starring Zeenat Aman, Screenplay by Jyoti Swaroop, Music by Bappi Lahiri,Produced by Umesh, Directed by Keshu Ramsay.
Last time Pran played a negative character.
The film did not release theatrically in British Columbia, Canada.
Last release at Mumbai's Roxy cinema which later shut down and opened with new structure in 2005.
There was a shelved movie S R N Productions "Kohra"(1991).Starring Javed Khan,Sreepradha, Arup Pal,Satapdi Roy,Music by Dilip Sen Sameer Sen, Directed by S. Bhakri.