Introduction & Context

Scale and Complexity

India's internal security landscape is uniquely complex. The country has open land borders of 15,106 km, a coastline of 7,516 km, and a deeply heterogeneous social fabric.

The challenges range from insurgencies rooted in post-colonial unresolved questions (Nagaland, Manipur) to externally fomented terrorism (J&K, Punjab), to ideological movements challenging the state's writ (Left-Wing Extremism), to 21st-century cyber and hybrid threats.

Constitutional Framework

The constitutional framework places "public order" in the State List (Entry 1) and "security of the State" in the State List (Entry 2).

• Union List includes "defence of India" (Entry 1) and provisions for deployment of armed forces in States (Entry 2-A)
• In practice, internal security is a concurrent concern managed through Central Armed Police Forces deployed in states
• The MHA coordinates overall internal security

Post-26/11 Transformation

The 26/11 Mumbai attacks (2008) were a transformational event — exposing institutional gaps and triggering major reforms:

• Creation of the NIA as a dedicated counter-terrorism agency
• Improved coordination mechanisms
• Establishment of Multi-Agency Centres (MACs) for intelligence fusion

The subsequent decade saw significant reduction in Naxal violence, partial resolution of Northeast insurgencies, and a post-370 normalisation trajectory in J&K — alongside new and growing cyber and online radicalisation threats.

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