At the eve of Bangladesh Liberation War, Noor left Dhaka and came back to Nilphamari District when he received an order from his political party on 8 March 1971. There he helped the then East Pakistan Rifles (now Border Guards Bangladesh). He crossed the border during the War of Liberation on 8 April. Noor was a freedom fighter under the Sector-6 and helped to organise the war and took training. He also helped to recruit freedom fighters during the nine-month war period. But following the liberation of Bangladesh he grew more distant with active politics. However, later Noor became active in the 1990 Mass Uprising against the military leader Ershad.