Desc: Rajakota Rahasyam: Directed by B. Vittalacharya. With Devika, Dhulipala, Mikkilineni, Mukkamala. Rajakota Rahasyam is a 1971 Indian Telugu film, directed by B. Vittalacharya and produced by M. K. Gangaraju. The film stars N. T. Rama Rao and Devika in lead roles. The film has musical score by Vijaya Krishnamurthy.