Late last night, Shiv Sena executive president Uddhav Thackeray said his father's health was improving and stable.
"Balasaheb is responding to medical treatment," Uddhav had said.
Maharashtra Governor K Sankaranarayanan and Chief Minister Prithviraj Chavan and other prominent persons from the field of politics, cinema and industry visited the Thackeray residence 'Matoshree' to enquire about the Sena supremo's health.
86-year-old Thackeray, who had been ailing since some time, turned very critical on Wednesday night.
But his health is said to be stable since yesterday.
Meanwhile, security has been beefed up around 'Matoshree'.