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. The films depicts a team of CBI officers led by Sethurama Iyer investigating into a murder case.
Oru CBI Diary Kurippu

NR2h 12m8.1

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The sudden demise of a businessman's daughter-in-law in a small town sets off a chain of events that descends into a sinister and unforeseen direction.

Nerariyan CBI

NR2h 27m6.1

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A detective with years of experience delves into a gruesome crime scene to uncover the truth behind the senseless killing of a young woman in a creepy and infamous mansion with a sinister past.

CBI 5

NR2h 43m5.6

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Mysterious murders sweep through the city, prompting a team of skilled CBI Officers, led by the seasoned Sethurama Iyer, to join forces and unravel the sinister truth behind the crimes.

The CBI film series background