Radhai, the homely one)[1] is a 1963 Indian Tamil-language romance film directed and written by A. P. Nagarajan.

The film stars Sivaji Ganesan, B. Saroja Devi and Devika.

While trying to elope, Radhai's sister-in-law Vanaja stops Radhai and convinces her not to elope, which makes Chandran feel betrayed.

Kulamagal Radhai directed by A. P. Nagarajan who also wrote the screenplay, and was produced by Spider Films.

[3] In Sport and Pastime, T. M. Ramachandran called the film "above average", praising Nagarajan's direction, the cast performances and the music but criticising Nagarajan for having made compromises to make the film commercially viable.