Shankar's I better than his Anniyan?

Vikram and Shankar had given the super hit film Anniyan few years ago. But Vikram���s look in Shankar���s forthcoming film I is creating more buzz among the audiences.
But to achieve that look, the actor had to undergo a lot of pain to tone his body. We believe that the actor even fallen a couple of times during the strict diet and workout regimen.
Soon after canning those portions, the actor had to put on weight for a couple of schedules, in which he played a character that was a bit on the heavier side.
The actor revealed that the special effects would show the actor in completely different avatar in the film.
AR Rahman is scoring the music for the film and PC Sreeram is handling the camera.