P Theerthalingam (24) and M Sujendran (38) were detained under Tamil Nadu Public Property (Prevention of Damages and Loss) Act, Explosive Act and section 506 (punishment for criminal intimidation) of IPC and lodged in a prison at Salem.
Incidents of violence, including torching and stoning of government buses were reported from various parts of Tamil Nadu last week in the wake of the arrest of PMK leaders, S Ramadoss and his son and former Union Minister Anbumani following the Marakkanam violence on April 25.
Anbumani was arrested from Chennai in connection with a case filed last year.