Right in the beginning of Jayasurya, when Vishal makes his entry, he tells a small-time thief, "I'm Pandem Kodi, don't you dare fight with me." And the sidekick retorts, "Not just he, everyone in the audience knows you are Pandem Kodi."
And then a semi-crystallized thought lurking in the recesses of your mind for long, finally comes out with blinding clarity. Vishal is so stuck with his first (and probably only) hit that he refuses to move on. He keeps thinking he can recreate that success by casting himself in similar macho roles.