Despite his fame and success, superstar Rajinikanth is believed to be a down-to-earth person. The screen icon has now opened on how he keeps himself grounded. "Once you've acted, it's finished, I forget Rajinikanth. I go back to Shivaji Rao. That's just work life for me. When somebody reminds me 'you are Rajinikanth' then I'll be like, oh yes! I am Rajinikanth