In the first fifteen minutes of the film, the audiences learn that the robot is made up of many components inside. For Srinivas, the vfx supervisor, one of the biggest challenges was the transition scene where Dr. Vaseegaran played by Rajinikanth puts on the silicon mask on the robot while the machine was singing. This shot is immensely crucial for the film to succeed. If the transition process didn't go well, then the entire credibility of the film would go off. This 19 second shot took an astounding three months to create.

Retaining Rajinikanth' youth

To preserve Rajinikanth's youth in the film, a combination of both make up and visual effects played an important part, touch ups were done where it deemed necessary for the team. But Srinivas emphasizes the fact that Rajinikanth's charisma played a big part in bringing his character of Chitti to life.