A few shots involving Sivaji Ganesan and N. T. Rama Rao took as many as four days to shoot, because of the large number of personnel involved.
It is the first "Tamil classic" to be digitized for re-release
Sivaji Ganesan's biggest film.
The entire soundtrack was completed in a span of three days.
Karnan was the most expected film during the festival occasion of Pongal on 14 January 1964, and Shanthi theatre in Chennai, which released the film, had a 60 feet tall banner of a chariot to attract the audience.