The explosion in a car near Delhi’s Red Fort on Monday, which killed at least 12 people and injured around 20, has reaffirmed the threat of terrorism and concerns over internal security. The case is being investigated by the NIA, with Umar Nabi, a young doctor from Pulwama in south Kashmir, identified as the prime suspect. There are unmistakable markings of a terrorist act, aimed at maximum impact in a crowded, public location in the heart of the national capital. The place and time reveal an intent to kill, damage, and unleash serious fear among the people. The Red Fort is an iconic symbol of the nation, and its neighbourhood always buzzes with life. An attack in the locality leaves an impact far beyond the environs.

Investigators have identified some associations of the perpetrators; th

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