The 43rd Assam Rifles launched an operation against NSCN-IM militants in remote Asalu under Mahur police station and busted their hideout in a jungle there.
After a heavy gun battle, the self-styled Mahur area commander Pren Angami and one unidentified militant were killed on the spot, the officials said.
Two AK-56 rifles, four AK-56 magazines, 210 rounds of ammunition, two IEDs, two Chinese hand grenades, NSCN-IM extortion notes, combat dresses and other essential items were recovered from the hideout, they added.