CBI (film series)

The CBI film series is a series of four Malayalam films directed by K. Madhu and written by S. N. Swami featuring Mammootty as Sethurama Iyer, a Central Bureau of Investigation (CBI) officer. The series started off in 1988 with the block buster Oru CBI Diary Kurippu.

Contents

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• Films
• Characters
• Sethurama Iyer
• References

The films depicts a team of three CBI officers led by Sethurama Iyer investigating into a murder case. All the films feature Mammootty as Sethurama Iyer. The other two members of the team vary in the series. All the four films so far released have Vikram, the character played by Jagathy Sreekumar as a CBI officer. But he is not part of the three-men team in the third film but appears in the film for a short length. Chacko played by Mukesh appears in the first film but is not part of the team. But Chacko becomes part of the team from the second film onwards.

The lead character, Sethurama Iyer is said to have been inspired by a police officer named Radhavinod Raju, who in 2009 was appointed as the first chief of India's National Investigation Agency.

The production of the 5th movie of the series titled "Black Investigators" is under progress.

The background score of the series became quite popular. Years after the release of the first two sequels, the background score became popular as mobile phone ringtone. This was one of the reasons that led the filmmakers to plan a third sequel after 15 years. All the sequels use the same background score, composed by music director Shyam.