"Balasaheb has a strong willpower. We'll come out from the problem. Don't trust rumours. Make peace," Uddhav, accompanied by son Aditya, said.
Later, Uddhav -- through a senior party colleague -- issued an appeal to all party activists to "remain calm" and said treatment was continuing on the ailing leader.
Doctors treating the Sena leader had said that 86-year-old Thackeray was in a "very critical" condition and on life support system.
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