Kaakke Kaakke Koodevide movie is all about Nandu is a poor boy who lives with his grandma (Lakshmi Krishnamurthy). They sell flowers at a temple. The grandma dies in a temple accident. The orphaned Nandu finds a friend in the mahout Chellappan (Vijayaraghavan). Chellappan has a wife and daughter. When he takes home Nandu, he gets into lot of trouble with his wife. Chellappan sends Nandu to school.
There he befriends Johnny, his classmate. Johnny is the son of tea shop owner Paapachchan (Jagadi Shrikumar) and Rahelina (Kalpana). Nandu and Johnny cut classes and learn things they were really interested in like playing flute. When Nandu demonstrates his flute skills in class, he gets caught. He is sent to the Headmaster. His teachers begin to keep an eye on him.
Nandu is drawn to the new teacher Sudharma (Geetu Mohandas). The teacher likes him too. He reminded her of her brother who died when he was a kid. The school sends him out for bad behavior. He decides to kill the elephant that killed his grandma. The attempt fails and his foster parents throw him out of the house. He joins a street circus troop. His teacher sees him and takes him and gives him shelter at her home. She gets transferred to her hometown. She takes Nandu with her.