A three-tier security measure has been put in place at every strong room situated within the Meenakshi Ramasamy Arts and Science College premises at Thathanur where the electronic voting machines used in the Chidambaram Lok Sabha constituency have been kept after polling.

Para-military personnel have been posted at each strong room which is being monitored round-the-clock through web cameras. The college is the counting centre for the Chidambaram Parliamentary constituency.

The Ariyalur Collector and Returning Officer of Chidambaram Parliamentary constituency A. Saravanavelraj inspected the strong rooms on Wednesday accompanied by Superintendent of Police Ziaul Haq, police and revenue officials, an official press release here said.