One of the major reasons for the historic success of Robo was people instantly remembered the characters despite the presence of biggest names in the film. People remember both Chitti the robot and scientist Vaseegaran in the film. It is therefore naturally exciting to see the charcter brought back to life again.
The image below is from the sets of 2.0 and the scientist is alive and kicking again. Also he looks a lot refreshing even though half a decade has passed in between.
