Manithan presents a compelling story that blends social issues with engaging drama, anchored by Rajinikanth's charismatic presence. The screenplay is well-structured, maintaining a steady pace throughout the film. The first half effectively sets up the characters and conflicts, while the second half intensifies the drama with courtroom sequences and emotional confrontations.

The film's pacing is balanced, ensuring that the narrative does not drag despite its runtime. The songs, though limited, complement the mood of the film and are situationally appropriate. The background score enhances the emotional depth, particularly during tense and dramatic moments, adding to the overall impact of the storytelling.

While the film does not rely heavily on musical elements, the cinematography by T. S. Vinayagam captures the essence of the settings and performances effectively. The direction by S. P. Muthuraman ensures that the film remains engaging and focused on its core themes without unnecessary diversions.

Rajinikanth: Powerful and convincing portrayal of an upright man fighting injustice.

Rupini: Supportive and emotive performance complementing the lead.

Cho Ramaswamy: Strong presence with impactful dialogue delivery.

Srividya: Nuanced and heartfelt performance.

Delhi Ganesh: Solid supporting role adding depth to the narrative.

Senthil: Comic relief with timing that lightens the mood.