Annadurai presents a straightforward narrative centered on a socially conscious hero battling corruption. The screenplay is linear and predictable, relying heavily on familiar tropes of the vigilante genre. The pacing in the first half is steady, focusing on setting up the protagonist's motivations and the socio-political environment, but it tends to lag with repetitive scenes. The second half picks up momentum with more intense confrontations and action sequences, though some plot points feel formulaic.

The film's music, composed by Vijay Antony himself, includes a few songs that blend well with the narrative but do not stand out as memorable hits. The background score effectively underscores the film's dramatic moments, enhancing tension during key scenes. Cinematography by Dhillraj captures the rural and urban settings adequately but lacks visual innovation. Overall, Annadurai is a conventional entertainer with earnest intentions but limited novelty in storytelling or technical execution.

Vijay Antony: Delivers a sincere and intense portrayal of the righteous protagonist, carrying the film on his shoulders with conviction.

Diana Champika: Offers a modest performance with limited scope in a supporting role.

Mahima Nambiar: Provides adequate support but is underutilized in the narrative.

Radha Ravi: Effectively portrays the antagonist with a commanding presence.