Mirwaiz defied house arrest and tried to take out the march from his Nigeen residence along with a dozen of his supporters this afternoon but police stopped them and took them into custody, officials said.
They said he was lodged at Nigeen police station.
The separatists had given a call for a march to the UN office here to impress upon the world body to intervene and resolve the Kashmir issue.
Prior to his detention, Mirwaiz said the proposed march to the UNMOG was aimed at attracting the attention of the UN towards the "grave" situation in the Valley.
"The UN must stand up and take necessary steps to stop human rights violations and resolve Kashmir issue," he said.
Terming the situation in the valley as "grave and explosive", the Hurriyat chairman said the UN needs to play a "positive role" to resolve Kashmir issue.
A group of lawyers led by High Court Bar Association president Mian Abdul Qayoom also tried to take out a march from the High Court complex here but were stopped by police at Budshah Chowk bridge, the officials said.
The lawyers returned to the High Court complex after staging a peaceful sit-in at Jehangir Chowk.
The officials said residents of several localities in the city including Batmaloo, Chattabal, Safakadal, Noorbagh, Rainawari, Dalgate, Brain, Rawalpora, Shah Kadal, Habbakadal, Fatehkadal and Guru Bazar also staged peaceful sit-ins after their attempts to march to the UN office were scuttled by security forces.
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