Pudhiya Geethai movie tells Sarathy (Vijay) shines in every fact of life. The astrologer who predicted he will be perfect and his life will end when he is 27. Without knowing this, Sarathy enjoys his life. Suji (Meera Jasmine) who is his close friend while Jo (Amisha Patel) who is a photojournalist, adores and tricks Suji by saying she loves him and plays with her emotions.
The incidents that follow with the accord to the astrologer's prediction follows the rest of the story.The power of positive thinking and the power of spoken word has been dramatically portrayed by Sarathy's character.