Anniyan - whats on Shankar's mind

Recently watched the movie Anniyan. The best part of the movie was Vivek's comedy -amazingly timed one -liners ! The main story, though, left a feeling of having seen it before- A common man unable to tolerate the apathy & corruption in Indian society starts to set it right with some stunts. List - "Gentleman", "Indian", "Anniyan"
The process is started when the hero has a first hand experience of how bad the society is
- if he hasn't already felt it by watching Shankar's movies :)

In all three movies Shankar has picked well-built stars for the main role. Surya should probably add little more muscles before he can qualify, Vijay will probably never qualify . Siddharth was an exception as the movie was titled "Boys" and also "Boys" is beyond the scope of current discussion.

The hero almost always leaves a clue - being a nice guy he has to help the cops solve the crime before the movie gets over. The innovation has been from an ancient tamil character in "Indian" to jumbled words in Tamil-Sanskrit combo in "Anniyan". I forget what happens in "Gentleman".

The main character is either a Brahmin by birth in real life or is made one in the movie.

I have to watch the movies again to dig more similarities. I am sure there are more to come.