Citizen presents a gripping social thriller that attempts to blend action with a strong message about corruption and justice. The story is engaging, with a screenplay that maintains interest through its investigative and emotional sequences. The pacing is uneven at times; the first half sets up the premise effectively with a mix of suspense and drama, while the second half tends to slow down due to repetitive confrontations and extended emotional scenes.

The film's music and songs, though composed by an uncredited music director, complement the narrative without overpowering it. The background score effectively heightens the tension during key moments, especially in the thriller sequences. Cinematography by Ravi K. Chandran adds a polished visual appeal, capturing both the gritty and emotional aspects of the story.

Overall, Citizen succeeds in delivering a socially relevant message with a commercial format, though it could have benefited from tighter editing and more consistent pacing in the latter part of the film.

Ajith Kumar: Strong and intense portrayal of a vigilante with emotional depth.

Vasundhara Das: Supportive role with limited scope but effective presence.

Meena: Emotional and convincing in her role.

Nagma: Brief but impactful appearance.

Nizhalgal Ravi: Solid supporting performance.

Devan: Effective as an antagonist.