Justin Selvaraj Pandian, known by his stage name S. J. Suryah, is an Indian film director, screenwriter, actor, composer, producer and music director who predominantly works in Tamil cinema. He sought to become an actor but started out directing, assisting Vasanth and Sabhapathy.

Viyabari ( transl. Businessman) is a 2007 Indian Tamil-language science fiction comedy film directed and produced by Sakthi Chidambaram. The film stars S. J. Suryah in a dual role as a businessman and his clone, alongside an ensemble cast that includes Tamannaah Bhatia, Prakash Raj, Namitha, Malavika, Vadivelu, Santhanam, Seetha, and Nassar. The musical score was composed by Deva. Cinematography was handled by M. V. Panneerselvam, and editing was done by S. Suraj Kavee. The film was released on 11 July 2007.