Pulan Visaranai is a 1990 Tamil language action film directed by R. K. Selvamani. The film features Vijayakanth in lead role. The film, produced by R. Sundar Raj and S. Raveendran, had musical score by Illayaraja and was released on 14 January 1990. The film was a blockbuster and was considered to be one of the best crime thrillers of its time. It was remade in Hindi as Ravan Raaj: A True Story. The character of the antagonist Dharma is loosely based on the serial killer Auto Shankar. Telugu dubbed version Police Adhikari was also successful.