Unarchigal presents a compelling story that is both intense and thought-provoking, anchored by a screenplay that balances emotional depth with social commentary. The pacing in the first half is measured, allowing the audience to connect with the characters and their motivations, while the second half escalates the tension and drama effectively, leading to a powerful climax.

The film's songs and music, composed by Shyam, complement the narrative well, with melodies that enhance the emotional undercurrents without overpowering the scenes. The background score is subtle yet impactful, supporting the mood transitions and adding to the overall immersive experience.

Cinematography by R. N. Pillai captures the gritty and realistic tone of the film, using lighting and framing to emphasize the characters' internal conflicts. The direction by R. C. Sakthi is sensitive and focused, bringing out strong performances from the cast and maintaining narrative coherence throughout the film.

Kamal Haasan: Delivering a nuanced and intense portrayal, Kamal Haasan effectively conveys the emotional turmoil and complexity of his character.

Kanchana: Kanchana provides a strong and empathetic performance, adding depth to the film's emotional landscape.

Srividya: Srividya's performance is compelling and heartfelt, contributing significantly to the film's dramatic impact.

Major Sundarrajan: Major Sundarrajan brings gravitas to his role, enhancing the narrative with his commanding presence.