7Aum Arivu presents an ambitious blend of historical fiction and sci-fi thriller elements, with a screenplay that attempts to balance two timelines effectively. The first half is engaging, setting up the mystery and background with a good pace, while the second half leans more into action and science fiction, though it occasionally suffers from predictability and some logical gaps. The screenplay by A. R. Murugadoss is crisp but sometimes overburdened with exposition.

The film's pacing is generally steady, though the transition between the historical and contemporary plots could have been smoother. The songs composed by Harris Jayaraj are situational and melodious, complementing the narrative without disrupting the flow. The background score is one of the film’s highlights, effectively enhancing the tension and emotional beats throughout the movie.

Cinematography by Ravi K. Chandran is visually impressive, capturing both the ancient and modern settings with equal finesse. Overall, 7Aum Arivu is a technically well-crafted film with a novel concept, though it occasionally falters in narrative depth and character development.

Suriya: Suriya delivers a committed performance, convincingly portraying both the historical Bodhidharma and the modern-day Aravind with intensity and charisma.

Shruti Haasan: Shruti Haasan provides a graceful and supportive role, adding charm and emotional depth to the story.

Johnny Tri Nguyen: Johnny Tri Nguyen is effective as the antagonist, bringing a menacing presence to the film.