Indian authorities imposed a curfew in Srinagar and other towns of Kashmir Valley on Wednesday to foil a march towards the UN Observers Office in Srinagar to remind the World Body that it had failed to implement its resolutions on Kashmir. In a bid to prevent the march, Indian agencies placed Hurriat leaders, Mirwaiz Umar Farooq, Syed Ali Gilani, Agha Syed Hassan Al-Moosvi, Nayeem Ahmad Khan, Farida Behenji and other Hurriatt leaders under house arrest during a crackdown against APHC activists arrested several leaders and activists including Yasmeen Raja. A huge contingent of police and paramilitary forces cordoned off the residences of leaders Tuesday night and informed Hurriat leaders that they have been placed under house arrest. Kashmiris on both sides of the Line of Control (LoC) and all across the world are observing Black Day today to convey to the international community that despite Indian state terrorism, they reject its illegal occupation of Jammu and Kashmir. It was on October 27 in 1947 when Indian troops invaded Kashmir in total disregard to the partition plan of the sub-continent and against Kashmiris' aspirations. Call for observance of Black Day has been given by the All Parties Hurriat Conference Chairman, Mirwaiz Umar Farooq and veteran Kashmiri Hurriat leader, Syed Ali Gilani. Rallies in support of Kashmiri liberation struggle will be held in Muzaffarabad and world capitals.