National Investigation Agency

The National Investigation Agency (NIA) is the principal counterterrorism law enforcement and investigative agency of India. It is under the Ministry of Home Affairs. Responsible for investigating and prosecuting offences affecting the sovereignty, security, and integrity of the country. It was established under the National Investigation Agency Act, 2008, enacted in the aftermath of the 2008 Mumbai terrorist attacks. The NIA has nationwide jurisdiction to investigate offences listed in the Act's Schedule, including terrorism, terrorist financing, attacks on India's security, and other specified crimes.

The agency is empowered to take over investigations from state police forces with the approval of the central government and, under certain provisions of the Act, may also investigate offences committed outside India that affect Indian citizens or national interests. Headquartered in New Delhi, the NIA maintains branch offices across the country and coordinates with domestic and international law enforcement and intelligence agencies.

Headquartered in New Delhi, the NIA has branches across all major cities.