Kanthaswamy offers a blend of commercial cinema elements with a socially relevant vigilante theme. The story is straightforward, focusing on the hero's mission to fight corruption and aid the underprivileged. The screenplay maintains a decent pace, with the first half establishing the characters and the hero's motives effectively, while the second half escalates the conflict with more intense action sequences and emotional moments. The film's pacing is generally engaging, though some scenes tend to drag slightly.

The songs and music, while not credited here, play a significant role in enhancing the film's appeal, featuring catchy numbers that complement the narrative without overwhelming it. The background score supports the mood transitions well, particularly during action and suspense sequences, adding to the overall cinematic experience. Cinematography by N K Ekambaram captures the vibrant and dynamic aspects of the film, especially during the action scenes and song sequences.

Overall, Kanthaswamy succeeds as a commercial entertainer with a message, balancing action, drama, and music to keep the audience invested, despite some predictable plot points and occasional pacing issues.

Vikram: Charismatic and energetic, Vikram delivers a convincing portrayal of the vigilante hero with a good mix of intensity and charm.

Shriya Saran: Provides solid support as the female lead, with a graceful presence and emotional depth.

Vadivelu: Offers comic relief with his trademark humor, adding light moments to balance the film's serious themes.