Thats actually a copy of Mahesh babu's father Super Star Krishna. It was told by MS Narayana Ji himself that the director wanted him to do so and it turned it to be realistic 😝😝😝😝😝😝😝😝😝😝😝😝😝😝😝
The song from the tape recorder is from the Movie Jagadekaveerudu Atiloka Sundari of Mega Star Chiru Sir. Those days, people never had caste related issues and use to take references from any movie if it was accepted by people, even if there was competition between the stars. That's what the 80's born know the movie world
When this movie was released, lot of people started referring to fathers who care more than necessary as "Bommarillu fathers". That trend continues to till date even after so many years.