Athishayan

Devadas (Devadas), a young boy, drinks a potion brewed by scientist R.C. Shekar (Jackie Shroff) which makes him invisible, with the aim of rescuing Maya (Kavya Madhavan) who had adopted Devadas as a child, but who was in mortal danger for having videotaped an illegal transaction involving political bigwigs. In between trying to rescue Maya, a gunshot wound sparks off a chemical reaction in Devadas, turning him into a hulk-like monster. (Summary by iceblox)