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Verified Statutory Lexicon · Last Reviewed: Sep 07, 2026

Full Form of NIA

Official Full Form & Meaning
National Investigation Agency
हिंदी अर्थ: राष्ट्रीय जांच एजेंसी
Conducting / Regulatory Authority Ministry of Home Affairs (MHA)
Official Authority Portal nia.gov.in

1. Official Mandate, Scope & Background

The National Investigation Agency (NIA) is India's central counter-terrorism law enforcement agency constituted under the National Investigation Agency Act 2008 following the 26/11 Mumbai terror attacks. It exercises concurrent national jurisdiction to investigate offenses against national sovereignty.

2. Eligibility Criteria, Qualifications & Age Limits

Sub-Inspector in NIA: Bachelor's degree in any discipline from a recognized university. Age limit: Up to 30 years. Recruited through the SSC Combined Graduate Level (CGL) examination.

3. Examination Scheme & Selection Procedure

SSC CGL Tier-I and Tier-II Computer-Based Examination followed by strict Document Verification, Character and Antecedents verification, and Medical Examination.

4. Core Syllabus & Key Subjects

Quantitative Aptitude, General Intelligence, English Language, General Studies (Indian Constitution, Internal Security, Cyber Offenses), and Basic Computer Knowledge.

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