Originally Posted by
mappi
The answer lies in the timeline of Satya's life otherwise put in Satya's Carrier.
When Satya's dad embraces the fate of Uncle Ben, Satya becomes an IPS as during that time of his father's murder Alex Pandiyan was playing on the TV and thankfully not Spiderman. From here, we are introduced to a dynamic Satya who could be in his late 20's. He is a Ghost, as his own colleagues aka other officials (except GVM ofcoarse - fantastic touch this is) do not know him (ref. 1st time you see Satya in uniform, unshaven). Father Mathew gang may not be his first mission, but certainly its not the last one. At this point in his carrier he is a nobody operating as an annonymous (ref. 1. Scene in the hotel Cabin room where Victor vouches for satya. Ref 2 Father Mathew is careful that he asks Satya to stay with the car). Why only this back story alone is to show us who is Victor.
Then, he is presented as a Police Officier, but he still continues going undercover, but his cover gets blown (narration in the parking garage inbetween the song sequence). This song / its lyrics are a part of the 2 Satya's you see - bearded one and the DCP. So now he is getting famous in the underworld, plus corruption is speaking volumes, he becomes a secret crime branch which handles executions. Its not yet the world know him (ref. scooter chat with his neighbour).
Now is the important part of the time line - He meets Hemanika. He is in charge of reporting, obviously seen thru the media (ref. Hemanika at the court house says she saw him on TV the next day). His task on hand now is not to inflitrate but to take down. In this suituation he is a backup (ref. the phone conversation with his team). So to mingle with the crowd he dresses up as a Auto Driver. The other Auto Driver does not recognise him, but even before his memory re-initialises, Satya's look pulls the strings of his hand to salute.
The 2nd meeting with Hemanika happens after 2 years from their 1st meeting (clue: it was quite obvious). In this spawn of 2 years, Satya has risen to a status that he is no more undercover or executioner but the brains and hands behind operations that he gets visitors to his house (read Golden Raj), plus he has his shining name on a board hung by his door - END of Satya's Curiculum Vitae with a note he is uncorruptable (ref. Nasser at his doorstep).
The time line is tracked thru the various facial hair Satya ports - unshaven, thick mustach, trimmed mustach ... you could not have missed the others. Enormous work has been done to perfect the time line through his looks. From Ajith part he does it with his voice.
So how is the title concerned in this short episode - Yennai Arindhal to the villans moment + the realisation of Satya - Power & Strenght he has - he simply is the Ruler now, that even a threat to his empire is the dust in the wind. He realises many other 'self' during the coarse of the movie, which I may cover later.