SRINAGAR (Agencies) - India on Monday deployed thousands of troops in Kashmir to prevent Muslims from staging protests against the arrival of soldiers in the region 61 years ago, officials said. The army presence came a day after a student protester was killed and 20 others were hurt when police opened fire and used teargas to disperse thousands of anti-India demonstrators in the Muslim-majority state. Monday's strike which was called by the Jammu Kashmir Coordination Committee, a coalition of pro-independence leaders and representatives of businesses, lawyers and government employees, closed all shops, schools, banks and businesses in Srinagar. The state government imposed undeclared curfew in Srinagar and other important cities of Kashmir. Troops in Srinagar patrolled deserted streets, erected barricades and blocked roads leading to the offices of UN Military Observer Group in India and Pakistan (UNMOGIP). UNMOGIP, one of the oldest UN missions, monitors a 1949 ceasefire line dividing Kashmir between India and Pakistan. Mirwaiz Umar Farooq, chairman of All Parties Hurriyat Conference, and some other pro-independence leaders and lawyers were placed under house arrest to prevent them from leading a march to the UN office. "October 27 is the blackest day in the history of Kashmir," Farooq said referring to the day in 1947 when Indian troops arrived to take control of the region, just over two months after India and Pakistan won independence from Britain. Indian government troops arrived in Kashmir on October 27, 1947, after the region's Hindu ruler requested help to fend off an invasion by the tribesmen. The maharajah, Hari Singh, initially held out for independence for Kashmir when Britain withdrew from the Indian subcontinent in August 1947. Meanwhile, Indian troops shot dead five freedom fighters during a gun battle in the forests of Kishtiwar district, south of Srinagar, an army statement said. "The five were members of Hizbul Mujahedin," it said. Meanwhile, Kashmiris across the world observed Black Day on Monday against Indian aggression and hold protest demonstrations, rallies and walks. Demonstrations were also held in front of Indian mission in various capitals of foreign countries to condemn Indian malicious design to illegally occupy Kashmir as well as to press for the demand to achieve right to self-determination for Kashmiris. People also took to the streets on both sides of the divide on a call by Hurriyet Conference for observing the Black Day and life was on a halt both in AJK and IHK. The biggest rally was held in Islamabad that was started from Foreign Office and culminated at the office of UN Military Observer Group where a sit-in was staged. The protestors chanted anti-India and pro-liberation slogans while carrying placards and banners reading blatant violation of human rights by the brutal Indian forces and denial of their right to freedom. Addressing the rally, former prime minister of AJK Barrister Sultan Mehmood Ch said Kashmiris be involved in Pak-India dialogue on Kashmir so that the dispute could be solved as per wishes of Kashmiris and to maintain peace in the region. He urged the international community to stop India for abusing human rights in IHK, besides compelling her to fulfil commitments to give the people their choice to franchise.