A man has been arrested in connection with a deadly car bomb attack that killed eight people and wounded 20 others in Delhi last week, authorities have said.

The National Investigation Agency (NIA) stated that the car used in the attack, which the government has termed a terrorist incident, was registered in the name of the arrested suspect.

Accusations against him include conspiring with the alleged suicide bomber. This suspect is reported to be a resident of Indian-administered Kashmir.

The explosion occurred near a metro station close to the iconic Red Fort, one of Delhi's most significant landmarks.

The NIA has seized another vehicle allegedly belonging to the suicide bomber for examination and has interrogated 73 witnesses, including individuals injured in the blast.

This attack marked the first explosion of this nature in the heavily guarded city since 2011.

Monday evening's incident took place at 18:52 local time (13:22 GMT) when a vehicle stopped at a busy traffic signal and subsequently exploded.

Home Minister Amit Shah later confirmed that a white Hyundai i20 was involved in the explosion.

Visual evidence from the location depicted the aftermath, showing the remains of a charred car alongside other damaged vehicles, including autorickshaws.

Prime Minister Narendra Modi described the attack as a conspiracy, committing to bringing those responsible to justice.

Opposition leader Rahul Gandhi expressed his sorrow over the incident, which he described as extremely heartbreaking.

Police investigations are also looking into recent arrests of seven individuals in Indian-administered Kashmir and any potential links to this attack.

Connections to a seizure of 2,900 kg of explosives in a Delhi suburb are under scrutiny as well.

The Red Fort attracts thousands of tourists daily and serves as a backdrop for the Indian Prime Minister's annual Independence Day speeches, further emphasizing the incident's significance.