This film is the second in the series of the CBI investigative thrillers featuring Mammootty as CBI officer Sethurama Iyer. Oru CBI Diary Kurippu (1988) is the prequel to this film and sequels are Sethurama Iyer CBI (2004) and Nerariyan CBI (2005). A fifth film in the franchise has been announced and is now in the pre-production stage.
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