Rajinikanth, who is currently shooting for his latest film Rana in which he plays a triple role, was admitted to the Isabel hospital.
On April 29, he was admitted to the same hospital briefly for exhaustion and dehydration.
The 60-year-old actor was stable, hospital sources said.
Rajinikanth hospitalisation last week came on the day on which Rana, a period film in which he is paired opposite Bollywood heroine Deepika Padukone went on the floors.
Rajnikant was also being treated for allergic bronchitis, hospital sources added.