Nagamadathu Thampuratti is a 1982 Indian Malayalam film, directed by J. Sasikumar and produced by E. K. Thyagarajan. The film stars Prem Nazir, Jayabharathi, Sankaradi and Adoor Bhasi in the lead roles along with Meena, C I Paul, Jagathy Sreekumar, Unni Mary. The film has musical score by M. K. Arjunan. It was dubbed into Hindi as Nag Log.
When the princess of Nagamadam is born, Ishwarkutty is upset. In order to make his son the king, he conspires to kill the princess, unaware that a goddess has blessed her with the power of a serpent.