Chathurangam is a 2002 Indian action thriller film directed by K. Madhu and starring Mohanlal, Nagma, and Saikumar in lead roles. The film revolves around a plot to assassinate the Chief Minister of Kerala and the subsequent investigation into the matter. Mohanlal plays the role of Bharath Chandran, an investigative journalist who is assigned to cover the Chief Minister's speech in a public function. However, things take a drastic turn when he witnesses a group of terrorists trying to assassinate the Chief Minister. He manages to capture one of the terrorists, but things get complicated when he realizes that the terrorist is the son of a powerful politician. Meanwhile, the Chief Minister appoints a tough and no-nonsense police officer, Suryanarayanan (Saikumar), to lead the investigation into the assassination attempt. Suryanarayanan begins to unravel the deep-rooted conspiracy behind the attack and soon realizes that it is just the tip of the iceberg. As the investigation progresses, Bharath becomes increasingly involved in the case and starts to uncover shocking truths. He discovers that there are many people involved in the plot to assassinate the Chief Minister, including some high-ranking officials in the government. He risks his life to expose the conspiracy and bring the culprits to justice. Nagma plays the role of Geetha, a lawyer who supports Bharath in his quest for justice. The chemistry between Mohanlal and Nagma is one of the highlights of the film. Their witty banter and romantic moments provide some much-needed relief from the serious tone of the film. Chathurangam also features a stellar supporting cast, including Thilakan, Siddique, and Jagathy Sreekumar. The film's soundtrack, composed by Berny-Ignatius, is another strong point. The songs are well-composed and beautifully picturized, adding to the overall impact of the film. The film's screenplay, co-written by S. N. Swamy and Robin Thirumala, is taut and gripping. The dialogues are sharp and witty, and the pacing is just right. The film's climax is particularly impressive, with some stunning action sequences and a suspenseful finale. Chathurangam was a critical and commercial success upon its release. It was praised for its strong performances, gripping storyline, and well-executed action sequences. Mohanlal's performance, in particular, was singled out for its intensity and emotional depth. In conclusion, if you're a fan of action thrillers and political dramas, Chathurangam is a must-watch. It is a gripping, well-paced film that will keep you on the edge of your seat from start to finish. With its strong performances, well-written screenplay, and excellent direction, Chathurangam is a classic of its genre.