Twelve persons were detained today in connection with the murder of a Trinamool Congress worker at Dubrajpur area in West Midnapore district which goes to poll on Monday.
A senior police officer said the district administration has also sent a report to the Election Commission in connection with the murder.
"Till now 12 people have been detained and further raids are on," the officer said.
Joydeb Jana (30) was attacked with sharp weapons, lathis and iron rods by a group of armed men allegedly belonging to Congress and CPI(M), when he was returning home last night, the official said.
Jana was declared brought dead at the local hospital.
Jana's wife lodged an FIR with the Sabang police station against 22 people including former minister and Congress candidate for Sabang Assembly seat Manas Bhunia.
Local Trinamool Congress leader Amulya Maity alleged that Jana was beaten to death in the presence of Bhunia, which was denied by Congress leaders.
