New Delhi, Apr 1 (IANS): The National Investigation Agency (NIA) on Wednesday registered a case against the Islamic State Khorasan Province (ISKP) over the recent gurudwara terror attack in Afghanistan's Kabul in which 27 people died, making it the first case registered for terror activity outside India.

An NIA spokesperson said that the anti-terror probe agency has registered a case against ISKP, as it had claimed the responsibility for the attack.

The spokesperson said that as per the preliminary investigation, one Muhsin from Kerala's Kasargod and others who had joined ISKP, are suspected to have been involved in the attack.

He said the agency lodged a case under several sections of the Indian Penal Code, Unlawful Activities Prevention Act (UAPA) under the provisions of section 6(8) of the NIA Act.

This is the first case of its kind which NIA has registered as the recent amendments in NIA Act have empowered it to investigate terror cases which are committed at any place outside India against Indian citizens or affecting the interests of India.

On March 25, unknown gunmen had stormed into a gurudwara in Kabul and fired indiscriminately killing 27 devotees and injuring several others. About 150 persons were inside the gurudwara when the attack took place.

An Indian citizen, a resident of Delhi, Tian Singh was also killed in the attack.