Mythili Ennai Kaathali presents a typical 1980s Tamil romantic drama with a strong emphasis on emotional storytelling. The screenplay, penned and directed by T. Rajendar, follows a linear narrative that balances romance and family drama, though it occasionally suffers from melodramatic excesses. The pacing is moderate, with the first half setting up the characters and relationships effectively, while the second half delves deeper into conflicts and resolutions, maintaining audience engagement despite some predictability.

The music, also composed by T. Rajendar, is one of the film's highlights, featuring melodious songs that complement the emotional tone of the story. The background score supports the dramatic moments well, though it sometimes leans towards being overpowering. Cinematography by T. Rajendar captures the settings adequately, though it lacks visual innovation. Overall, the film is a showcase of T. Rajendar's multi-faceted involvement, delivering a nostalgic experience for fans of that era's Tamil cinema.

T. Rajendar: Delivered a passionate and intense portrayal, balancing his roles as actor, director, and music composer effectively.

Srividya: Provided a mature and nuanced performance, adding emotional depth to the narrative.

Amala Akkineni: Brought freshness and charm to her role, complementing the lead cast well.