Agni Natchathiram is a 1988 Tamil film directed by Mani Ratnam. The movie is about two half-brothers who come into conflict with each other in their claim for legitimacy as sons of a common father. The cast includes Prabhu Ganesan and Karthik Muthuraman. The movie's score and soundtrack are composed by Ilaiyaraaja. The movie is regarded as a landmark in Indian cinematography with trend-setting lighting work by P. C. Sriram. The movie was blockbuster and remade in Hindi as Vansh.