Though the film has been titled Punnami Nagu, it has nothing to do with the Chiranjeevi blockbuster Punnaminagu. Despite being directed by a senior director like A Kodandarami Reddy, the film has failed to offer anything Novel. Several films have come with two King Cobras moving together and one of them getting killed by villains and the second one taking revenge. The director has failed to serve the old wine in a new bottle in a different flavour and style.
Sorceress Karjari (Nalini) plans to grab the powerful Nagamanis from two snakes to become the monarch by. Another sorcerer Namboodri (Sajid Khan) also tries for the same. Karjari takes the help of a group of people (Vinodkumar, Varni, Lochan) who have been researching on snakes and finds the snake couple. On a full moon day, the snakes decide to submit their Nagamanis to Lord Mahesha and come under Karjari’s scanner.
Karjari uses her tantrik power to capture them, but the three people who helped Karjari try to grab the Nagamanis. One of them shoots the snakes and the male snake dies of bullet injury and the second snake escapes. Karjari tells them to capture a girl with a specific mark on her back, which will help her capture the snake who escaped from the spot, with the other Nagamani.