A Congress Corporator was killed by two unidentified persons at Bhayander in neighbouring Thane district on Saturday, police said.
Praful Kashinath Patil (51) was shot on his back from a close range and also attacked with choppers, police said.
The four-time member of the Mira-Bhayander Municipal Corporation, who also runs the Abhinav College, was attacked in the college premises, they said.
He was rushed to the nearby Tunga Hospital in Mira Road, where he was declared dead, police said.
A property dispute is suspected to be the cause of the murder, civic sources said.
The 79-member civic body is ruled by the Congress-NCP alliance.