Nani was just a successful hero until MCA happened. The day when he proved that he can carry a simple film on his shoulders and open consistently big at box office, he became a star hero.
The range could vary but any hero who can bring audiences to the theater despite of the content in the film, then such a person is called star, female or male!
Allu Arjun tried to be one with Puri Jagannadh's Desamuduru, Sukumar's Arya 2 after good, successful and consistently entertaining films but only Julayi could present him in a look and character that Family & Class audiences could accept him as a hero.
S/O Satyamurthy even though did not work like Sarrainodu or Race Gurram at box office it did become a successful film, but it did put him in the minds of audiences so much that he could take 20 months gap, but still his image did not vanish.
May be he too understood the same after Naa Peru Surya and Duvvada Jagannadam. He did say that at Sarrainodu success event that he knows many troll Boyapati Srinu but he is a good commercial director than many who are clever & talented than him, which seemed like an indirect punch to Trivikram at that time, for not giving him a resounding success like Sarrainodu.
Now, at Ala Vaikuntapurramuloo event he gave credit of his stardom to Trivikram, almost as if he accepted that it is the writer-director, who laid foundation for his mass masala films to succeed and his failures too have decent returns, with two family entertainers.
During the same Sarrainodu event he lost support of Pawan Kalyan fans for "Cheppanu Brother" but with AVPL event he made many others say, "Every father should have such a son".
Still he and PSPK fans might be at war but he has a support of many who believe that Pawan Kalyan fans at mistake as they try to force many say their hero's name, out of context!