Gokula Krishnan was an Indian film director, who has directed Tamil films. He was primarily active in the 1980s and early 1990s and is most noted for his work on films featuring actor Karthik. He also extensively worked with Malayalam director Fazil, when he made Tamil films, helping write dialogues.
Karthik is indian.
There is no mention of the nationality of Karthik.The system has confused it with the nationality of the director.