[6] Padma is forced to marry a mentally dull man Raghu, whom she eventually makes a normal human while teaching a lesson to her scheming mother-in-law and brother-in-law Nagu.

Pennin Perumai was the first film where Gemini and Sivaji Ganesan acted together.

[9] The song "Azhuvadhaa Illai Sirippadhaa" is the first duet T. M. Soundararajan and P. Susheela sang together.

[citation needed] Kanthan of Kalki praised the performances of the main cast, especially Gemini Ganesan for deviating from the caring, affectionate and romantic characters he was known for portraying.

[10] The Indian Express wrote, "All-round acting of very high order in a powerful drama of human emotions easily marks out Ragini Films' Pennin Perumai as a class picture".