Son-in-law) is a 1952 Indian Tamil-language drama film[1] directed by T. R. Raghunath and written by V. N. Sambandam.

It revolves around an office boy who becomes wealthy in a rags to riches manner, and the attempts made by his boss's son to destroy him and usurp his wealth.

Maappillai was directed by T. R. Raghunath, written by V. N. Sambandam and produced by National Productions.

[3] The soundtrack was composed by T. R. Pappa and N. S. Balakrishnan, while the lyrics were written by Thanjai N. Ramaiah Dass.

The song "Dosu Kodukka Venum", picturised on Radhakrishnan and Rajam, satirises "men, mores and morals", and attained popularity.