Pawan Kalyan is one of the most charismatic Superstars of Telugu Cinema. His films and characters always make headlines and he is very humble about them.
When it comes to character names and design, Trivikram Srinivas has a unique touch altogether. He doesn't come up with regular name but gives them a good mythological twist and also, there will be a unique sound that connects the story of the film and the lead character.
For example, Nanda Gopal/ Pardhu in Athadu, Anand Vihari in A..Aa, Gowtham Nanda in Attharintiki Daredi, Sanjay Sahu in Jalsa and Ravindra Narayan in Julayi.
All these names have philosophical and mythological touch in Telugu literature. For Agnyathavasi, he chose to give Pawan Kalyan, character name of "Abhishikt Bhargav". In short all refer to him as AB. The song, "AB evaro nee Baby", is obviously a hint.
Also, the group of companies in the cinema is named as AB group and we can see that from the working stills and some in action images released earlier as well.