Three special teams led by the Superintendent of Police of the district have been formed as part of efforts to arrest the assailants, who fled from the site after committing the crime, Sharma said.
A group of men yesterday dragged Laxmidutta Pradhan (35), councillor of ward no. 6, out of his house in Chhatrapur and attacked him with sharp weapons.
Pradhan was taken to MKCG Medical College and Hospital, where he succumbed to injuries.
Enmity is suspected to be the cause of the killing, but a thorough investigation is in progress, with three teams engaging in the exercise at different places, a senior police official said.
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Sub-Divisional Police Officer (SDPO), Ramesh Chandra Sethi said the BJD leader's younger brother Debadutta also suffered injuries when he tried to stop the attackers.
Some people have been detained in connection with the killing, police said.
The slain councillor was an accused in the murder case of Sakuru Behera, a CPI supporter, at Chhatrapur on July 23, 2014, they said.
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