Indian authorities said on yesterday that a deadly car blast in New Delhi earlier this week was an attack carried out by a “suicide bomber”,

After scanning the footage of over 1,300 CCTV cameras across Delhi-NCR and beyond, investigators probing the blast near Red Fort last Monda.

The probe connects to the Red Fort blast, involving doctors from Al-Falah University and illegal fertiliser purchases, now investigated by the NIA.

India's government confirmed on Wednesday that it was treating a car blast that killed eight people and wounded at least 20 others in Delhi as a "terror incident" and vowed to bring the perpetrators to justice as swiftly as possible.

The two deadly attacks are separate, and no evidence currently links the two. But for the two South Asian rivals, the political shockwave caused by the blasts are a stark reminder of the lingering security issues that fester below the surface throughout the region.

India has vowed to bring to justice the "perpetrators, their collaborators, and their sponsors" behind the deadliest explosion in the nation's capital for more than a decade.

A car exploded near the historic Red Fort in India's Delhi on Monday, killing eight people and injuring 20, a rare occurrence in recent years in the heavily guarded national capital.

Those responsible for the explosion “will not be spared,” Prime Minister Narendra Modi of India said. The blast killed at least eight people near a subway station at evening rush hour.

Mock drill operations began in South Mumbai at Sasoon Dock a high-security coastal location. Agencies including the coastal police, local police units, and emergency response teams coordinated to test their readiness.