Nizhal Nijamagirathu stands out for its compelling content and mature storytelling, characteristic of K. Balachander's directorial style. The screenplay is tightly woven, balancing emotional depth with narrative clarity, allowing the audience to engage deeply with the characters' journeys. The pacing is measured, with the first half establishing the characters and their conflicts effectively, while the second half intensifies the drama and brings resolution with impactful scenes.

The film's songs and music, composed by M. S. Viswanathan, complement the mood of the story without overpowering it. The background score subtly enhances the emotional tone, supporting the narrative's shifts between tension and tenderness. Cinematography by B. S. Lokanath captures the nuances of the characters' expressions and the atmospheric settings, adding to the film's immersive quality.

Overall, Nizhal Nijamagirathu is a thoughtful and well-crafted film that blends strong performances with skilled direction and memorable music, making it a significant work in Tamil cinema of the late 1970s.

Kamal Haasan: A nuanced and restrained portrayal that captures the emotional complexity of his character.

Sumithra: Delivers a sensitive and convincing performance, adding depth to the narrative.

Shoba: Strong and impactful, bringing authenticity to her role.

Sarath Babu: Supportive and effective in complementing the lead roles.