|Directed by||Shaji Kailas|
|Written by||S. N. Swamy|
|Starring|| Mammootty |
A. B. R. Productions
The Truth is a 1998 Malayalam-language police procedural thriller film written by S. N. Swamy and directed by Shaji Kailas.  Mammootty plays the lead role of an IPS officer investigating a political assassination of the CM. The film was dubbed in Tamil as Unmai and in Telugu as Delhi Simham. It was remade in Kannada as Naxalite in 2000. 
Patteri, a respected brahmin astrologer, helps a cop named Pothuval to crack an ill-famed temple robbery. Madhavan. P is a respectable CM of Kerala initiates a crackdown on corrupt government officials, angering his party and ministers alike. In the upcoming by-election, Madhavan has to win to retain his position as the CM, the party conspires against him for that matter. During a chance encounter with the CM, Patteri senses a bad omen regarding Madhavan's success and hopes that the by-elections won't happen. Meanwhile, an enigmatic and alluring woman is shown entering an apartment where she meets an accomplice and they check the details of an assassination which they plan to carry out soon.
Right before Madhavan's next election meeting, DGP Hariprasad shares his concern about an anonymous threat call that he received with DYSP John asking him to tighten the security and be with Madhavan at all times, but the plan is executed and Madhavan is killed along with the people on the stage with him, including John, where the initial investigation is headed by SP Meena Nambiar. Aided by a misplaced CCTV from the debris, Meena's suspicion is laid on the photograph of the killer woman, who sneaked into the venue using a forged reporter pass. They trace the local temporary residence of the woman and arrest the home owner and his family on charges of sheltering the culprit, although he was tricked by the woman.
The investigation advance no further, which provokes the Judge, who was dealing the case; because for no solid reason, the home owner and his family are being punished, due to the inefficiency of the investigating officer. The sensational nature of the case, achieved partly because of Meena Nambiar's media obsession, causes a SIT to take over. The SIT arrives from New Delhi and is headed by DIG Bharath, who is posted in Central Ministry of Home Affairs, and is also Patteri's son. The initial friction between Bharath and Meena, dwindles to friendship, once Bharath makes the first startling discovery. Bharath is targeted by unknown assassins, on one occasion even inside the IPS headquarters.
While this frightens most, Bharath gets convinced that the killer is among the police department and also influential. He grows suspicious of the credibility of the photograph of the killer woman and the fact that the killer's residence yielded no female fingerprints and that there is an unidentified male fingerprint in the same apartment, reveals to him that the photograph was a decoy. The killer is male and the photographs were used to misdirect the investigation. They learn the whereabouts of the killer by first generating a male version of photograph of the killer and then publicizing it. They also apprehend the killer's accomplice. But before being able to capture the killer, who goes by the name Bose, they find him already dead, and the investigation almost comes to a standstill, until they learn that there was a similar attempt before, which did not go as planned.
Bharath learns that DYSP John was the real target and Madhavan's death was a cover. The political conspiracy against Madhavan was used by the perpetrator to further misdirect the investigation. In search of a motive behind the assassination, the team finds that John was investigating an accidental explosion in a fireworks factory at the time. John was astonished by the findings of the case, where the explosives license of the owner, Poozhimattom Thomachan, an influential politician, was being employed for dealing with larger quantities of explosives driving terrorist activities in the country. John was killed for discovering the illegal activities and Madhavan's murder was used to distract the investigators.
The perpetrator also feared the response of Madhavan as John's investigation report were to reach his hands. The team's most astounding find then follows, with the discovery of the puppet master and the silent partner in the illegal explosive deals of Thomachan and the perpetrator is actually DGP Hariprasad, who administered the investigation from the beginning. He misled the previous investigation, initiated various attempts to murder Bharath to scare the team away and played the faithful ally throughout. The team submit the report, where DGP Hariprasad and Thomachan are sentenced to prison. After the investigation, The SIT fly back to Delhi, with a promise of promotion for Pothuval for his help.
It was one of the biggest hits of the year. 
Baba Kalyani is a 2006 Indian Malayalam-language action thriller film directed by Shaji Kailas, written by S. N. Swami, and produced by Antony Perumbavoor through Aashirvad Cinemas. It stars Mohanlal in the title role, and also features Indrajith Sukumaran, Biju Menon, Mamta Mohandas, Sai Kumar, and Jagathy Sreekumar in important roles. The film's music was composed by Alex Paul. The film released on 15 December 2006 was a commercial success at the box office, becoming one of the top ten highest-grossing Malayalam films of the year.
Mission 90 Days is a 2007 Indian Malayalam-language film directed by retired Army officer and former commando Major AK Raveendran SM starring Mammooty. It is Major Ravi's second directorial venture and is based on the assassination of former Indian Prime Minister Rajiv Gandhi and the following investigation.
Pathram (transl. Newspaper) is a 1999 Indian Malayalam-language political thriller film written by Renji Panicker and directed by Joshi, starring Suresh Gopi, Manju Warrier, Murali, N. F. Varghese, Biju Menon, Abhirami.
Narasimham is a 2000 Indian Malayalam-language action drama film directed by Shaji Kailas and written by Ranjith. The film stars Mohanlal in the title role with Thilakan, N. F. Varghese, Aishwariyaa Bhaskaran and Jagathy Sreekumar in pivotal roles. Mammootty appears in a cameo role. The film was the first production of Aashirvad Cinemas, owned by Antony Perumbavoor, the former chauffeur of Mohanlal.
Oru CBI Diary Kurippu is a 1988 Indian Malayalam-language mystery thriller film directed by K. Madhu, written by S. N. Swamy, and starring Mammootty, Suresh Gopi, Jagathy Sreekumar, Mukesh, and Sukumaran. The lead character, CBI officer Sethurama Iyer is inspired by a police officer named Radha Vinod Raju, Jammu and Kashmir cadre IPS Officer who in 2009 was appointed as the first chief of India's National Investigation Agency. It was the highest grossing Malayalam film at that time. Considered one of the best crime thrillers in Malayalam, it eventually developed a cult following. This is the first instalment in the CBI film series featuring Mammootty as Sethurama Iyer.
I. G. – Inspector General is a 2009 Indian Malayalam-language action drama film written and directed by B. Unnikrishnan. The film stars Suresh Gopi in the title lead role followed by Nandini and Ashish Vidyarthi in supporting roles.
Oru Abhibhashakante Case Diary is a 1995 Indian Malayalam-language mystery legal drama film directed by K. Madhu and written by S. N. Swamy.The film stars Mammootty, Heera Rajagopal, Jagathy Sreekumar, Vijayaraghavan, Rajan P. Dev and Narendra Prasad. The plot is about a lawyer, seeking justice for a teenage girl who was raped and murdered. The film has soundtrack composed by Raveendran while the background music is scored by Rajamani.
The King is a 1995 Indian Malayalam-language political action thriller film written by Renji Panicker and directed by Shaji Kailas, with Mammootty in the lead role as district collector. In 2012, Shaji Kailas made a combined sequel titled The King and the Commissioner, in which Mammootty and Suresh Gopi reprised their roles as Joseph Alex IAS and Bharatchandran IPS. The film was released on October 23 1995, coinciding with Diwali, where it was declared one of the highest grossing Malayalam film of all time.
Rakshasa Rajavu is a 2001 Indian Malayalam-language action crime film written and directed by Vinayan and starring Mammootty in the lead role along with Dileep, Meena, Kalabhavan Mani, Vijayakumar, Rajan P. Dev, Cochin Haneefa and Sukumari. The film was released on 31 August 2001, and was subsequently dubbed in Telugu and Tamil as Commissioner Rudrama Naidu and Commissioner Eeswara Paandiyan.
August 1 is a 1988 Indian Malayalam language action thriller film directed by Sibi Malayil, written by S. N. Swamy, starring Mammootty, Sukumaran, Captain Raju and Urvashi. The film was produced and distributed by M. Mani under the banner of Sunitha Productions. August 1 is loosely based on the 1971 British novel The Day of the Jackal, by Frederick Forsyth which had inspired a film of the same name. The film was a commercial success and is considered one of the best investigative thrillers in Malayalam cinema.
Olympian Anthony Adam is a 1999 Indian Malayalam-language action thriller film written and directed by Bhadran. It stars Mohanlal,Meena and Nassar with Sanika Nambiar, Arun Kumar, Seema, Jagathy Sreekumar, in supporting roles. It is a remake of the 1990 American film Kindergarten Cop. The film was produced by Mohanlal through the company Pranavam Arts. The music was composed by Ouseppachan. The plot follows an investigation by Chakkummoottil Varghese Antony IPS (Mohanlal) about a planned terrorist attack in India.
Kanyakumari Express is a 2010 Malayalam police procedural thriller film directed by T S Suresh Babu, starring Suresh Gopi, Lena, Babu Antony, Sarayu and debutant Gowri Nandha as the heroine.
The King & the Commissioner is a 2012 Indian Malayalam-language action thriller film written by Renji Panicker and directed by Shaji Kailas, starring Mammootty and Suresh Gopi. The film is a crossover of the films Ekalavyan(1993), Commissioner (1994), The King (1995) and Bharathchandran I.P.S. (2005).
Silence, also known as The Power of Silence, is a 2013 Malayalam thriller film directed by V. K. Prakash and starring Mammootty, Anoop Menon, Pallavi Purohit, Joy Mathew and Jayaprakash Kuloor. The climax of the film is based on the 2011 South Korean courtroom thriller film The Client.
Aayudham is a 2008 Malayalam-language film, directed by M. A. Nishad. The film stars Suresh Gopi, Thilakan, Bharathi, Karthika and Bala. The film had musical score by Alphonse Joseph and Biji Bal.
Abrahaminte Santhathikal is an Indian Malayalam-language action thriller film, released in 2018, directed by debutant Shaji Padoor and written by Haneef Adeni. The film stars Mammootty and Anson Paul in the lead roles, and Kaniha, Tarushi, Renji Panicker, Yog Japee and Kalabhavan Shajon in pivotal roles. Shot in Ernakulam, principal photography began on 5 January 2018 and ended in March. Gopi Sundar scores music to the film and editing is handled by Mahesh Narayan.
One is a 2021 Indian Malayalam-language political drama film directed by Santhosh Vishwanath and written by Bobby & Sanjay. The film stars Mammootty in the lead role. Mathew Thomas, Murali Gopy, Siddique, Joju George, Ishaani Krishna, Gayatri Arun and Nimisha Sajayan plays the supporting roles. The film received positive reviews and above average in box office and marks one of the best roles in Mammootty's career.
Lion is a 2006 Indian Malayalam language political thriller film written by Udaykrishna-Sibi K. Thomas and directed by Joshiy. The film stars Dileep, Kalasala Babu, Kavya Madhavan and Vijayaraghavan alongside a supporting cast that include Jagathy Sreekumar, Innocent, Sai Kumar, Shammi Thilakan, Riyaz Khan and Karthika. The film was produced by Noushad and distributed by Shan Entertainment. The film was a blockbuster at the box office. It was remade in Tamil as Nam Naadu and in Telugu as Evadaithe Nakenti.
CBI 5: The Brain is a 2022 Indian Malayalam-language mystery thriller film directed by K. Madhu and written by S. N. Swamy. The film stars Mammootty reprising his role as CBI officer Sethurama Iyer along with an ensemble cast. It is the fifth installment of CBI film series.
Christopher is a 2023 Indian Malayalam-language vigilante action thriller film directed by B. Unnikrishnan and written by Udaykrishna starring Mammootty in the titular role, with an ensemble cast of Vinay Rai, R. Sarathkumar, Amala Paul, Aishwarya Lakshmi, Sneha, Aditi Ravi, Shine Tom Chacko, Deepak Parambol and Siddique. The cinematography is handled by Faiz Siddik and the music is composed by Justin Varghese.