Maharashtra Chief Minister Uddhav Thackeray successfully underwent cervical spine surgery at the Mumbai's HN Reliance Hospital, his office said on Friday.
Mr Thackeray (61) has been moved to a ward after his surgery, said a statement from the Chief Minister's Office (CMO) quoting two doctors of the hospital - Ajit Desai and Shekhar Bhojraj.
"The doctors said he was stable during the surgery and has been doing well," the statement said.
Dr Desai is a cardiologist, while Dr Bhojraj is a spine surgeon.
On Wednesday, Mr Thackeray was admitted to the hospital on the advice of doctors after his neck pain aggravated.
Earlier this week, he had attended an event wearing a cervical collar.
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