Siva is a 1989 Tamil film directed by Ameerjan. The film features Rajinikanth, Raghuvaran, Sowcar Janaki and Shobana in lead roles. The film is a remake of the 1977 film Khoon Pasina, which starred Amitabh Bachchan. The film was dubbed in Telugu as Tiger Shiva in spite of N.T. Rama Rao's 1977 Telugu version Tiger, with Rajinikanth also starring in that film but playing Raghuvaran's role.
The film begins with Rajinikanth and Raghuvaran as kids, they are close friends like their fathers, in spite of their religious differences, one being Hindu and other Christian. A villain kills their families except Rajinikanth, Raghuvaran and Raghuvaran's mother, but Raghuvaran does not knows that Rajinikanth and his mother were alive and vice versa. 20 years later, Rajinikanth falls in love with Shobana and marries her. Raghuvaran is a hired goon who will do only good deeds. Raghuvaran is hired by the same villan to kill Rajinikanth and during the fight both get injured and finally they come to know that they are childhood friends. Eventually, both of them unite and fight the bad guy who killed their family.
