The Centre on Wednesday outlawed Nationalist Socialist Council of Nagaland (NSCN)- Khaplang faction for a period of five years, at a meeting chaired by PM Narendra Modi. In June, the group attacked security forces in Manipur and left 18 soldiers dead, while in May it killed eight Assam Rifles security personnel. NSCN-K unilaterally annulled ceasefire with the Centre in March.