Shiv Sena corporator from ward number five of Ambarnath Municipal Corporation, was on Friday attacked by a group of unidentified persons, following which he died at a hospital.
Pappu Gunjal, was attacked by as many as 13 persons with swords and other sharp-edged weapons, police said.
The incident took place near MSEB office at around 10 am when Gunjal was on the way to his office.
Gunjal was rushed to the hospital in Kalyan where he died while undergoing treatment.
Police suspect that political rivalry could be the reason for the murder.
Nobody had been arrested yet and the probe is on.