Tehreek-e-Hurriyat (TeH) activist Umar Adil Dar was arrested outside district court Anantnag in this south Kashmir district on Thursday.
Reports said that Dar, a resident of Lasjan area of Srinagar, was arrested by the cops posted in civvies outside the court.
An official said that Dar was booked under the Public Safety Act and sent to Kathua jail in Jammu.