Imphal: The National Investigation Agency (NIA) has arrested one of the miscreants involved in the 2024 attack on a security post in the Moreh area of Manipur’s Tengnoupal district, killing one policeman and injuring two others, an official said on Monday. NIA sources said that Thangminlar Mate, a.k.a. Lenin Mate, a resident of Tengnoupal district,.