Veteran actor Kamal Haasan, who was admitted to hospital following a bout of food poisoning, says he's fine and that there's no "cause for alarm".

"I know a lot of people would like to make a drama out of this. Sorry to disappoint them. I am fine. It's just a simple case of food poisoning. No cause for alarm," Kamal said over phone from a private hospital in Chennai.

After Hollywood star Arnold Schwarzenegger's flash-visit to Chennai Monday, on Tuesday, Chennai was abuzz with reports of Kamal's hospitalisation.

Talking about the reason, he said: "I am here because of food poisoning and dehydration. Nothing more serious than that." The stomach infection happened while shooting.

"We were shooting in the interiors of Kerala where there were no proper restaurants. We ate at roadside dhabas, probably drank infected water. One of those makeshift food places did not agree with me. So here I am."He will be discharged Wednesday.