Rakshasa Rajavu (transl. Demon king) is a 2001 Indian Malayalam-language action/crime thriller film written and directed by Vinayan and starring Mammootty in the lead role along with Dileep, Meena, Kalabhavan Mani, Kavya Madhavan, Vijayakumar, Rajan P. Dev, Cochin Haneefa, and Sukumari.^[1][2] The film was released on 31 August 2001 and was subsequently dubbed in Telugu and Tamil as Commissioner Rudrama Naidu and Commissioner Eeswara Paandiyan.^[3][4]

Ramanathan is a city police commissioner with a difference. The murder of his wife makes him take the law into his own hands as he gets no support from the various people he meets in this regard. He is always assisted by his subordinate SP Gopakumar IPS who admires Ramanathan for his honest and truthful behavior. He brings to justice the wrongdoers even though he accepts bribes. He follows the policy of Kayamkulam Kochunni a renowned real-life robber: taking from the rich and giving it to the poor. He also funds to run an orphanage for mentally disabled children.^[5]

Appu is in love with Daisy, the daughter of a wealthy politician. Daisy is under house arrest when her relationship comes to the knowledge of her rich father. Appu manages to meet her secretly. One day, Daisy's whole family is slaughtered as a result of a burglary. She is the only person alive & is now in a coma. Appu is accused of the murder & arrested. The rest of the story explains how Ramanathan saves Appu by proving his innocence & reveals the person who killed all of Daisy's family members for money & power.

The film was released on 31 August 2001. It was the second release of director Vinayan after Karumadikkuttan which was released in April 2001.

The film was a megahit and ran for over 100 days in theatres.^[6][7][8]