Thaai Magalukku Kattiya Thaali

Thaai Magalukku Kattiya Thaali
Directed by	R. R. Chandiran
Produced by	R. R. Chandiran
Written by	Rama Arangannal
Story by	C. N. Annadurai
Starring	M. G. Ramachandran Jamuna Rajasulochana P. Kannamba K. A. Thangavelu O. A. K. Thevar M. G. Chakrapani
Music by	T. R. Papa
Cinematography	R. R. Chandiran
Edited by	P. V. Manickam
Production company	Kalpana Kala Mandir
Distributed by	Kalpana Kala Mandir
Release date	31 December 1959
Running time	160 mins
Country	India
Language	Tamil

Thaai Magalukku Kattiya Thaali is a 1959 Tamil language film starring M. G. Ramachandran, Jamuna and P. Kannamba in the lead roles and directed by R. R. Chandiran who also was a well known cinematographer in his time.

Sundharam Mudhaliyar (M. G. Chakrapani) is a wealthy man living with his daughter Kaveri (Rajasulochana) and Sahadevan lives with his wife Thanabakkiam (P. Kannamba) and daughter Sundhari (Jamuna). During a dance competition at the school function, Sundhari wins the first prize and Sundharam could not accept this as Sahadevan's family belongs to an inferior caste and indebted money from him. Sundharam magnifies this simple misunderstandings which results the death of Sahadevan. In order to cover this up, Sundharam disposes the body into the river and cooks up a story that Sahadevan had run away to avoid paying his debts. Sahadevan survives but suffers from amnesia. Sundharam grabs over Sahadevan's house and land as a compensation for his debts and Thanabakkiam and Sundhari had to leave to a smaller house in another village. There Thanabakkiam saves the life of Kanagasundharam or Kanagu (M. G. Ramachandran) from drowning in the river and thanked by Kanagu's father Loganayagam (D. Balasubramaniam) of the assistance rendered despite the difference in their caste. Kanagu and Sundhari becomes close friends and grow up to be lovers.

Loganayagam who would like to renovate the school requests Kanadu to seek donation from Sundharam. Kanagu and his friend Dhuraiappan (K. A. Thangavelu) leaves to Sundharam's place when they bump into an arrogant and modern girl Kaveri. When Kaveri goes back she is shocked to learn that Kanagu is her relative and falls for him. Meanwhile the villagers and relatives of Kanagu tries to drive Kannamba and Sundhari in order to separate Kanagu and Sundhari from getting married but they fail to do so when Kanagu intervenes. Thanabakkiam gets to know about Kanagu and Sundhari's relationship and tries to advise Kanagu but Kanagu promises to marry Sundhari. The villagers and relatives of Kanagu complain to Loganayagam about this but Loganayagam agrees to get them married. Matters gets worse when this news spreads to the whole village which paints Kanagu as a womaniser. Fortunately Loganayagam does not believe this and sends for Thanabakkiam to arrange their children's wedding.