Kamal hassan was wearing real power glasses for the film. To nullify the power of the glasses, he was wearing a contact lens of the exact negative power.
The film is based on Kamal Haasan's personal views on communism, atheism and altruism.
The portrait painted by Nallasivam on the walls of Padayatchi's house is inspired by the Mexican painter Diego Rivera's fresco, Man at the Crossroads.
The producer's were going to dub the film in Hindi as " Shivam". After the release, they decided not to.
The first street song during the flash back of Nalla was used in the Tamil movie Veeram [2014]