When the audio 'Rangasthalam' was released before the release of the film, the folk song 'Aa gattununtaava. ee gattukostaavaa 'song has attracted the attention of music lovers. Devi Sri Prasad's energetic tune suited the folk singer Siva Nagulu's voice perfectly and became an instant hit parade.
When the film finally came out, everyone had a surprise because the singer changed. The voice of Devi Sri Prasad replaced the voice of Siva Nagulu in the film. Many people have criticized Devi and Sukumar for changing the voice of Siva Nagulu. When Sukumar came to know the criticism, he gave a clarification that they first recorded the song with the voice of Devi Sri Prasad and then they recorded the song with Siva Nagulu. When they looked at the last cut, they felt that Siva Nagulu's voice did not match Charan's body language and continued with Devi's voice.
Siva Nagulu was unhappy about changing his voice. In an interview with the TV channel, he said he did not know that the "Rangasthalam" team was changing its voice. Siva Nagulu said that her friends watched 'Rangasthalam' the first day and they told her during the interval that her voice was being replaced in the film. He felt that his friends might not have observed the song clearly and told them the same thing. But he understood the fact when he watched the movie in the afternoon. He said he felt sad to have changed his voice.