---
title: "National Investigation Agency Act, 2008 — Definition"
description: "The National Investigation Agency Act, 2008 established India's central counter-terrorism agency, crucial for tackling scheduled offences across states."
url: "https://modeldiplomat.com/learn/glossary/national-investigation-agency-act-2008"
---

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Model Diplomat Research Team · Last reviewed June 22, 2026

TL;DR

- The National Investigation Agency Act, 2008 is an Indian statute that established a central counter-terrorism investigative agency with concurrent jurisdiction over scheduled offences across all states.
- How does the NIA's jurisdiction differ from that of the CBI?
- What did the 2019 amendment to the NIA Act change?
- Can the central government order an NIA investigation without a state's request?
- How are NIA cases tried and appealed?

[Civil Service & Diplomatic Exams](https://modeldiplomat.com/learn/civil-services/glossary)Updated June 22, 2026

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## Timeline

1. 26 November 2008

   34 of 2008) was enacted by the Parliament of India in the immediate aftermath of the Mumbai attacks, receiving presidential assent on 31 December 2008.

2. 31 December 2008

   34 of 2008) was enacted by the Parliament of India in the immediate aftermath of the 26 November 2008 Mumbai attacks, receiving presidential assent on .

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In 2019 India's National Investigation Agency, acting under the NIA Act, took over the investigation into the Pulwama convoy bombing that killed 40 Central Reserve Police Force personnel in Jammu and Kashmir.

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