Relangi Narasimha Rao, one of the close associate and disciple of the demised veteran director Dasari Narayan Rao has revealed the reasons of his death. In an interview, the fellow director Relangi Narasimha Rao explained the possible reasons why Dasari died. He said that Dasari was undergoing treatment for weight reduction and as part of the treatment, he had a balloon inserted in his belly. This treatment allows Dasari to take liquid food only and it helped him reducing about 7 or 8 kilograms. After seeing changes, the director went in for the same balloon therapy once again. In the meantime, he took treatment to enable him to eat normally through the mouth. According to the opinion of Relangi, this treatment cost the veteran director his life.