Revision summary
Challenges include terrorism, left-wing extremism, some north-east groups, communal violence, drugs, fake currency, cyber crime, and borders. The Intelligence Bureau is the Union internal intelligence service. Research and Analysis Wing is external intelligence; it is not India’s domestic investigator. NIA takes scheduled terror cases; CBI takes specified special and corruption cases; ED follows the money under PMLA. NTRO is a technical intelligence organisation supporting the others.
Model answer
Introduction
India’s internal security problems are several, not one insurgency. They include terrorism, left-wing extremism, some remaining north-east armed groups, communal and caste violence, drugs, fake currency, cyber crime, and coastal and border crime. Central intelligence and investigative agencies do not replace State police. They supply the all-India picture and the specialised case.
Body
Internal security challenges
- Pakistan-linked and other terrorism, including in Jammu and Kashmir, and modules in hinterland cities.
- Left-wing extremism in the central Indian forest belt, reduced but not gone.
- North-east insurgency remnants, extortion, and arms routes; much quieter than two decades ago, still live in pockets.
- Communal, separatist, and organised street violence that can scale into internal disorder.
- Narcotics, arms, and fake Indian currency as both crime and terror logistics.
- Cyber attacks, critical-infrastructure probes, and online radicalisation.
- Coastal and border infiltration, including drones.
Role of central agencies
- Intelligence Bureau (IB): the Union’s internal intelligence service. It collects and assesses threats inside India, supports the Ministry of Home Affairs, and feeds the Multi-Agency Centre. It is not a prosecution agency.
- Research and Analysis Wing (R&AW): India’s external intelligence service. It is not the lead internal-security police. It matters to internal security only where a threat is planned or supported from abroad; mention it as the foreign-intelligence counterpart, not as a domestic investigator.
- National Technical Research Organisation (NTRO): technical and satellite/signals support to intelligence; a capability agency, not a street force.
- National Investigation Agency (NIA): statutory investigator and prosecutor of scheduled terror and related national-security offences across States after the 2008 law (later widened).
- Central Bureau of Investigation (CBI): investigates specified corruption, special crimes, and some cases with inter-State or international character, usually with State consent except where law says otherwise. It is a police agency under the Delhi Special Police Establishment Act, not a spy service.
- Enforcement Directorate (ED): enforces Prevention of Money Laundering Act and foreign-exchange law. In internal security it follows terror finance and proceeds of crime, not the bomb itself.
- Coordination sits in the Ministry of Home Affairs, Multi-Agency Centre, and, for money trails, Financial Intelligence Unit – India. State police and central armed police remain the mass of the response.
Flow diagram
flowchart TD CH[Internal challenges] --> IB[IB internal intel] CH --> NIA[NIA terror cases] CH --> ED[ED money trail] CH --> CBI[CBI special crime] EXT[Foreign link] --> RAW[R and AW external] TECH[Signals satellites] --> NTRO[NTRO]
Conclusion
Internal security is terrorism, extremism, communal violence, drugs, cyber and borders. IB leads internal intelligence; R&AW is external and should not be described as a domestic police. NIA, CBI and ED investigate terror, special crime and dirty money; NTRO supplies technical take. None of them replaces the State police.
Quick related
Students also ask
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Give out the major sources of terror funding in India and efforts being made to curtail these sources. In the light of this, also discuss the aim and objective of the ' No Money for Terror [NMFT]' Conference recently held at New Delhi in November 2022.
Next question on this syllabus topic (2023 · Q20). View answer →
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Does R&AW handle Kashmir street cases?
No. Internal collection is IB and State agencies. R&AW’s brief is foreign intelligence, including overseas support to a threat.
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Can NIA replace State police?
No. It takes scheduled national-security cases. Ordinary law and order stays with the State.
PYQ trend
When UPSC asked this
Related PYQs from other years, newest first. Open a question to read it.
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2025 · Q10 · GS III · 10 marks
The Government of India recently stated that Left Wing Extremism (LWE) will be eliminated by 2026. What do you understand by LWE and how are the people affected by it? What measures have been taken by the government to eliminate LWE? -
2025 · Q19 · GS III · 15 marks
What are the major challenges to internal security and peace process in the North-Eastern States? Map the various peace accords and agreements initiated by the government in the past decade. -
2023 · Q20 · GS III · 15 marks
Give out the major sources of terror funding in India and efforts being made to curtail these sources. In the light of this, also discuss the aim and objective of the ' No Money for Terror [NMFT]' Conference recently held at New Delhi in November 2022. -
2022 · Q20 · GS III · 15 marks
Naxalism is a social, economic and developmental issue manifesting as a violent internal security threat. In this context, discuss the emerging issues gest a multilayered strategy to tackle the menace of Naxalism. -
2019 · Q9 · GS III · 10 marks
The banning of 'Jammat-e-Islami' in Jammu and Kashmir brought into focus the role of over-ground workers (OGWs) in assisting terrorist organizations. Examine the role played by OGWs in assisting terrorist organizations in insurgency affected areas. Discuss measures to neutralize influence of OGWs. -
2018 · Q10 · GS III · 10 marks
Left Wing Extremism (LWE) is showing a downward trend, but still affects many parts of the country. Briefly explain the Government of India's approach to counter the challenges posed by LWE. (150 Words, 10 Marks). -
2017 · Q10 · GS III · 10 marks
The north-eastern region of India has been infested with insurgency for a very long time. Analyze the major reasons for the survival of armed insurgency in this region. -
2016 · Q17 · GS III · 12 marks
The terms 'Hot Pursuit' and 'Surgical Strikes' are often used in connection with armed action against terrorist attacks. Discuss the strategic impact of such actions.
More from this topic
Q19 · UPSC Mains 2025 · GS III · 15 marks
What are the major challenges to internal security and peace process in the North-Eastern States? Map the various peace accords and agreements initiated by the government in the past decade.
Internal Security and Extremism
The Northeast’s security problems mix leftover insurgency, ethnic conflict, drugs, migration and Myanmar-China borders. The 2020 Bodo Accord and 2021 Karbi Accord were the big Assam settlements of the decade. The 2015 Naga framework agreement is still not a final peace. The 2020 Bru-Reang deal and 2023 UNLF pact sit beside Manipur’s 2023 ethnic violence. Assam’s border agreements with Meghalaya and Arunachal tried to quiet inter-State maps.
Q10 · UPSC Mains 2025 · GS III · 10 marks
The Government of India recently stated that Left Wing Extremism (LWE) will be eliminated by 2026. What do you understand by LWE and how are the people affected by it? What measures have been taken by the government to eliminate LWE?
Internal Security and Extremism
Left Wing Extremism in India means the Maoist insurgency centred on central Indian forest-tribal belts. Villagers suffer killings, extortion, closed schools and the crossfire of operations. Official figures show fewer severely affected districts and fewer deaths than at the peak. SAMADHAN combines intelligence, camps, surrenders and connectivity. A 2026 ‘end’ is credible as a shrinking map, not as the death of every idea; development and forest rights decide whether the map stays quiet.
Q20 · UPSC Mains 2023 · GS III · 15 marks
Give out the major sources of terror funding in India and efforts being made to curtail these sources. In the light of this, also discuss the aim and objective of the ' No Money for Terror [NMFT]' Conference recently held at New Delhi in November 2022.
Internal Security and Extremism
Major sources are overseas patronage, hawala, narcotics, counterfeit notes, extortion, misuse of non-profits, and emerging crypto rails. India uses UAPA, PMLA, NIA, FIU-IND, FCRA, narcotics and fake-currency drives, and FATF standards. The No Money for Terror conference in New Delhi in November 2022 was the third ministerial on terror finance. Its aim was joint investigation, freezing, and no safe haven for financiers, including new payment tech. International cooperation is required because the money chain is rarely inside one country.
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