Hurriyat (M) chairman Mirwaiz Umar Farooq was placed under house arrest in Srinagar on Friday.
A spokesman said that a posse of policemen arrived at the Nigeen residence of the Mirwaiz and placed him under detention.
He said the Mirwaiz was scheduled to deliver a sermon on the occasion of Ashura and pay tributes to Imam Hussain (AS) and other martyrs of Karbala at Alam Sahib, Narwara.