Lengbat Engleng, defense secretary of the United People's Democratic Solidarity (UPDS), waves a flag of the group during a surrender ceremony in Diphu. (AP)A member of the United People's Democratic Solidarity (UPDS) rebel group holds a flag of the group as they arrive for a surrender ceremony in Diphu. (AP)A member of the United People's Democratic Solidarity (UPDS) rebel group holds a flag as they arrive for a surrender ceremony in Diphu. (AP)Rebels of the United People's Democratic Solidarity (UPDS) hold an Indian flag during a surrender ceremony in Diphu. (AP)Wajar Mukrang, joint secretary of the United People's Democratic Solidarity (UPDS), holds an automatic weapon to lay down during a surrender ceremony in Diphu. (AP)Members of the United People's Democratic Solidarity (UPDS) rebel group arrive for a surrender ceremony in Diphu. (AP)