The explosion on Monday took place near a busy metro station close to the landmark Red Fort in the capital’s Old Delhi quarter, where the prime minister delivers the annual Independence Day address.
A hospital official has said the blast killed 12 people. It was unclear whether the toll included Nabi.
The NIA’s statement said the attack “claimed 10 innocent lives and left 32 others injured”.
Prime Minister Narendra Modi has called the attack a “conspiracy”, and his government vowed to bring the “perpetrators, their collaborators and their sponsors” to justice.
It was the most significant security incident since Apr 22, when 26 mainly Hindu civilians were killed at the tourist site of Pahalgam in Indian-administered Kashmir, triggering clashes with Pakistan.
Kashmir has been divided between India and Pakistan since their independence from British rule in 1947, and both claim the Himalayan territory in full. Tensions remain high between New Delhi and Islamabad.
On Friday, nine people were killed when confiscated explosives blew up at a police station in Indian-administered Kashmir, in what authorities said was an accident.
Local media reported that a militant organisation had claimed responsibility for it, which police dismissed.
The explosives had been recovered from Haryana state just before the powerful car blast in Delhi, according to the police.
Indian media have widely connected the Delhi blast with a string of arrests just hours prior.
Police said those arrested were linked with Jaish-e-Mohammed (JeM), a Pakistan-based and Al-Qaeda-linked group, as well as a Kashmiri offshoot linked to it.
The group that claimed the police station blast is considered close to JeM.
https://www.channelnewsasia.com/asia/india-says-accomplice-delhi-car-blast-suicide-bomber-arrested-5470621
