What is "porkkalam"

Porkkalam is a 2010 Indian Tamil-language action film Directed, Edited & Cinematography by debutant Bandi Saroj Kumar. Starring Kishore of Polladhavan and Vennila Kabadi Kuzhu fame, Tinnu Anand, who starred in Mani Ratnam's Nayagan and Bombay, comedy actor Sathyan and Smitha, a newcomer from Karnataka, in lead roles and seven artists as Villains, the film has musical score by Rohit Kulkarni. The film was released on 14 January 2010.