Blood affection) is a 1954 Indian Tamil-language drama film directed by R. S. Mani, written by C. V. Sridhar and produced by T. K. Muthusamy.

Raghu, the owner of a cycle company, lives luxuriously with his wife Sarala and children in Madras.

Madhu, his manager, has been misappropriating the company's funds with the help of his lover Manorama who Raghu is later attracted to.

Sarala faces many troubles and after several incidents, all problems are solved and the family reunites.

[1] The play's film adaptation would later be produced by Shanmugam's brother T. K. Muthusamy under the banner "Auvai Productions", and directed by R. S. Mani.

[1] Shooting took place at Neptune Studios, later known as Dr. MGR-Janaki College of Arts and Science for Women.