Ennathan Mudivu was produced by Balu,[2] and directed by K. S. Gopalakrishnan, who also wrote the screenplay.

[6] The film received critical acclaim for its treatment and the performances of its cast, but did not succeed commercially.

[1][7][8] On 21 August 1965, The Indian Express called the film "grim, gripping and, at times, brilliant.

"[9] On 11 September 1965, T. M. Ramachandran of Sport and Pastime praised the film for various aspects, including Gopalakrishnan's writing and direction, and the cast performances.

[11] However, S. Krishnaswamy of The Illustrated Weekly of India felt it "suffered from basic contradictions in plot, and from the absence of cinema in its vital visual form".