Naagarahaavu (English: Cobra) is a 1973 Indian Kannada language film directed by Puttanna Kanagal, based on T. R. Subba Rao’s three novels Nagarahavu, Ondu Gandu Eradu Hennu and Sarpa Mathsara, and starring Vishnuvardhan, K. S. Ashwath, Aarathi and Shubha in lead roles. The supporting cast features Leelavathi, Ambareesh, Shivaram, Dheerendra Gopal, Lokanath and Vajramuni. This is the first Kannada movie to complete 100 days in three centres.
The film was a huge success and paved way for the stardom of Vishnuvardhan and Ambarish who eventually morphed as leading actors in Kannada cinema. This was Vishnuvardhan’s first movie as the lead. Over a period of time, the character roles of Leelavathi, Dheerendra Gopal, Loknath, M. N. Lakshmi Devi have come in for their share of applause.
The film primarily revolves around the protagonist’s relationship with his teacher, Chamayya(K. S. Ashwath). Chamayya, who is childless treats Ramachari (Vishnuvardhan) as his son. He takes it upon himself to guide Ramachari on the right path despite Ramachari’s legendary anger. He usually acts as the negotiator between his student and the people who have issues with Ramachari’s behaviour. Ramachari is a young man whose anger is his weakness. He is difficult to reason with and has a great deal of pride. Chamayya is the only person who can convince him to do anything. His love interests are Alamelu( Aarathi) and Margaret (Shubha) who play pivotal parts in his life.
The conversations between the Guru (Chamayya) and Shishya (Ramachari) is the highlight of movie all through. Chamayya and Ramachari have differences of opinion over what is right and wrong. Chamayya is more willing to blend in with the society than Ramachari and this usually ends in an arugument between the two. It is possible that the society is the silent rhetoric for the title of the movie which spreads venom — a cobra.
The movie was remade in Hindi as Zehreela Insaan in Tamil as Raaja Naagam and in Telugu as Kode Nagu .
The film was re-released in its digitized version on July 20, 2018. This movie was digitalized by Balaji who is the brother of V.Ravichandran and son of Veeraswammy who was the producer. Re-release was also a big hit and broke so-many records. Hatrik Hero Dr. Shivarajkumar came to Narthaki Theater to watch this movie on 22/July/2018. The re-release got a huge appreciation from all and created a new record of collection.