According to police, miscreants pulled down the three flags, hoisted in front of the CPIM office in Udayampalayam, and set them ablaze around 3 AM and fled the scene, which was noticed by some partymen who were sleeping there.
Based on a complaint, police registered a case under Tamil Nadu Pproperty (Prevention of Damage and Loss) Act of 1992 and further investigations were on, they said.
CPI-M and CPI are contesting the April 24 Lok Sabha polls on their own in the state.