The National Investigation Agency (NIA) has taken over the investigation into the 13 July IED blast in Chumoukedima, Nagaland, which killed an Assam Rifles Havildar and critically injured four other personnel. The Ministry of Home Affairs (MHA), in a letter dated 27 July, directed the NIA to assume control of the case, citing the gravity of the offence and its national security implications, officials confirmed on Tuesday.

How the Transfer Was Ordered

According to an official statement by Nagaland Director General of Police Rupin Sharma, the Centre determined that a scheduled offence under the National Investigation Agency Act, 2008 had been committed. Invoking Section 6(5) read with Section 8 of the Act, the MHA directed the NIA to take over from the Nagaland Police, which had registered the case at Chümoukedima Police Station. The Nagaland government and state police will coordinate with the NIA during the handover process as required by law.

What Happened on 13 July

A powerful Improvised Explosive Device (IED) detonated near Sukhovi in Chumoukedima district on 13 July, striking a vehicle in an Assam Rifles convoy travelling near the Assam Rifles Training Centre. Havildar Mohammad Iqbal of the 28 Assam Rifles Battalion, a native of Poonch district in Jammu and Kashmir, was killed in the attack. Four other Assam Rifles personnel sustained serious injuries. A civilian was also struck on the leg by flying debris, and an auto-rickshaw parked nearby was extensively damaged.

Reward Announced, Investigation Intensified

Four days after the blast, on 17 July, the Nagaland Police announced a cash reward of ₹50,000 for credible information leading to the identification and arrest of those responsible. Commissioner of Police Aotula T. Imchen said the Dimapur Police Commissionerate had launched an intensive investigation into what authorities described as a 'heinous terrorist act.' The reward covers information on perpetrators, financiers, those who harboured or transported suspects, recovery of explosives or weapons, and discovery of any hideout or logistical support network linked to the offenders.

NSCN-IM Condemns the Attack, Distances Itself

The National Socialist Council of Nagalim-Isak-Muivah (NSCN-IM), the dominant Naga insurgent group, strongly condemned the IED blast, calling it a 'cowardly terrorist act' aimed at disrupting peace in the region. The group stated that the use of IEDs and anti-personnel mines could not be justified, warning that such attacks endanger civilian lives and undermine the peace process. The NSCN-IM said it would seek to establish the facts behind the incident and identify those responsible.

A Pattern of Violence in the Northeast

The 13 July Nagaland blast came just eight days after a separate deadly ambush in neighbouring Manipur. On 6 July, suspected Naga armed militants ambushed an Assam Rifles vehicle at Nungshang Kong along the Imphal-Dimapur National Highway (NH-2) in Ukhrul district, killing Warrant Officer Balwant Singh and Havildar Chandra Mohan Singh. Massive joint operations by Central and Manipur security forces are continuing to trace those responsible. The NSCN-IM denied involvement in the Manipur ambush as well, reaffirming its commitment to the ceasefire agreement and the ongoing Indo-Naga peace process. The two incidents together mark a sharp escalation in violence against Assam Rifles personnel in the region within a fortnight.

With the NIA now at the helm, the probe is expected to take on a wider national-security lens — tracking the origin of the IED, its supply chain, and any cross-border linkages.