Investigators probing the recent explosion near Delhi’s Red Fort are focusing on the possible use of PETN (Pentaerythritol Tetranitrate), a powerful military-grade explosive rarely encountered outside high-risk terror operations. The detection of PETN traces has intensified efforts within national security agencies, which are now examining potential supply chains and trafficking routes linked to the blast.
Initial forensic assessments suggest the presence of PETN — a high-velocity nitrate-based compound often found in sophisticated explosive devices. The likely combination of PETN with ammonium nitrate indicates a technically assembled charge designed for maximum impact. Due to its high sensitivity to heat and friction, PETN can cause significant damage even in small quantities. Its ability to integrate easily into plastic explosives adds to its destructive potential and makes detection more difficult.
The suspected use of PETN has raised serious concerns about the procurement and illegal circulation of restricted explosive materials. In India, PETN is manufactured only under strict defence licensing and is not commercially available. Past seizures in regions such as Jammu & Kashmir and Kerala point to the existence of covert supply networks capable of trafficking restricted chemicals. Investigative agencies are now probing whether similar channels enabled PETN’s movement into the national capital.
Detecting PETN is challenging when used in limited quantities or when blended with other compounds, adding complexity to the forensic process. Authorities are analysing surveillance footage, reconstructing the blast sequence, and collaborating with national intelligence units to track the origin of materials used. The reappearance of PETN recalls earlier incidents such as the 2011 Delhi High Court blast, where the same explosive was reportedly detected — underscoring recurring security lapses around its circulation.
Investigators are pursuing multiple leads involving forensic analysis, chemical sourcing, and potential trafficking routes — both domestic and cross-border. The final laboratory confirmation of the explosive composition will determine the next phase of the investigation, including identifying suppliers, analysing distribution links, and mapping possible connections to organised networks suspected to be behind the Red Fort blast.
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