"I talked to the Chief Secretary last night when I landed here. He told me there is a marked improvement and she will be well soon," he told reporters on the sidelines of a conference organised by Builders Association of India here.
"Chief Minister of Tamil Nadu Jayalalithaa ji is recovering and likely to come out of hospital. I am confident that will happen. She is a person of strong will and at the end she will come out of hospital and serve the people," he said.
Later the hospital had said she was being treated for infection with respiratory support, among others.
Specialists from All India Institute of Medical Sciences, New Delhi, and from London, among others, have treated her during the period.
Apollo Hospitals Chairman Prathap Reddy had said yesterday that Jayalalithaa has "completely recovered" and it is up to her to decide when to go home.