N Santhosh, the director of Kanithan is a former assistant of AR Murugadoss, so it is not surprising that the film bears resemblances to his guru's films. The framework of the plot — the hero trying to discover the villain's identity even as the villain is trying to track him down — is similar to the one in Thuppakki (even Ghajini and Ramana involve this set-up but on a minor level); a point made ver mais...