Mamangam is a Malayalam-language period action film directed by M. Padmakumar, and produced by Kavya Film Company. Sajeev Pillai was the director in the first schedule but was replaced by M. Padmakumar. It stars Mammootty, Achuthan, Unni Mukundan, and Prachi Tehlan. The film is about the Mamankam festival of the 18th century in the banks of the Bharathappuzha at Tirunavaya, in the Malabar region. The film follows Chaaverukal who plot to overthrow the Samoothiri.
The film begins with a Mamangam festival(conducted every 12 years)which is conducted by the present Zamorin(Samoothiri)several years after the ownership of the festival was handed over forcefully from Valluvakkonathiri to the Zamorin. From that time onwards Valluvakkonathiri used to send his best Warriors(Chaverukal) from Valluvanad to confront the Zamorin and kill him. But the warriors would usually die by the hands of Zamorin’s 30000 men even before they could reach the Nilapaduthara where the Zamorin used to sit. The eyes of such dead warriors are pulled out and their body is dropped into a well-named Manikkinar with the help of elephants. During this Mamangam too, the Chaverukal led by Chandroth Valiya Panikkar(Mammooty) has arrived to confront the Zamorin. They fight the Zamorin’s army and everyone except Valiya Panikkar dies. But finally, Valiya Panikkar reaches the Nilapaduthara by his skills. The story then shifts to 24 years later where 2 of the latest warriors in Chandroth Tharavaadu are preparing to leave to Mamangam festival or Mamangappattanam as Chaverukal after they had visions from Thirumanthankunnu Devi to do so. They are Chandroth Panikkar(Unni Mukundan) and a young boy of 12 years named Chanthunni(Achuthan).