Development After assisting
A. V. Meiyappan in producing films for
AVM Productions, his sons
Saravanan, Murugan, Kumaran discussed producing one on their own with his son-in-law Arun Veerappan. Their mother Rajeswari told Meiyappan about this, and he gave his consent. The first story the brothers discussed was
Maanam Periyadhu, but it did not shape up well. Unwilling to make a half-baked story as their inaugural production, Saravanan continued searching. Vellaichaami, an ex-employee of AVM, told Saravanan that
Javar Seetharaman had been discussing a story with Meiyappan. Saravanan inquired further and learned that the story was
Pattuvum Kittuvum. and the 1960 Chinese film ''Nobody's Child''. Cinematography was handled by T. Muthuswamy, editing by S. Surya, and art direction by H. Shantaram.
Casting Gemini Ganesan, his last name credited as Ganesh, was cast as Rajalingam and
Savitri Ganesh as the title character Kannamma.
Daisy Irani was originally chosen to play Rajalingam and Kannamma's son Selvam, after AVM were impressed with her performance in
Yaar Paiyyan (1957). Sara Ramachandran, the family doctor of AVM, came to the AVM household with four-year old
Kamal Haasan.
Filming The song "Kangalil Vaarthaigal Puriyatho" was shot with many mango trees in the background. When it was decided to reshoot parts of the song, the mangoes were no longer in the trees since the season had ended. Hence, it was decided to reshoot the necessary scenes with fake mangoes hanging from the trees. The first shot filmed on Haasan was a scene featuring Kannamma feeding him
upma. The song "Ammavum Neeye Appavum Neeye", picturised on Selvam, was recorded with three minutes duration, but Prakash Rao filmed its video to be only one-and-a-half minutes long. Although Bhimsingh offered to retain Prakash Rao's name in the credits, he declined. When Saravanan found another company made a film
Kadavulin Kuzhandhai on the same plot as
Kalathur Kannamma, he decided to release
Kalathur Kannamma as soon as possible. However Meiyappan wanted to reshoot certain scenes which Saravanan was not interested in. Meiyappan felt the presentation was more important than the plot so as per his suggestion, the scenes were reshot. The final length of the film was . == Soundtrack ==