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Ministry of Home Affairs: Structure and Functions

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The Ministry of Home Affairs looks after internal security, borders and the forces that guard them. Police itself stays with the States. This lesson covers its departments, its seven forces, the NIA and the NDMA, as of 9 October 2026.

At a glance

Four key facts on this topic

01 PoliceA State subject.
02 DepartmentsSix, under the Home Secretary.
03 ForcesSeven CAPFs.
04 BodiesNIA, 2008. NDMA, PM chairs.
Contents
  1. What does MHA do?
  2. How is MHA organised?
  3. Which forces report?
  4. NIA and CCTNS
  5. Who runs NDMA?
  6. Exam traps
  7. Remember this
  8. 5 understanding checks
  9. Related articles
  10. 8 practice MCQs

Must Know · The Ministry and its forces

1

What does MHA do?

1.1 What are its main jobs?

The Ministry of Home Affairs handles many duties. Its own page lists these as the important ones:

  • Internal security and border management.
  • Centre-State relations and the administration of Union Territories.
  • Management of the Central Armed Police Forces.
  • Disaster management.

1.2 Police is a State subject. So why does MHA matter?

Public order and police are Entries 1 and 2 of the State List in the Seventh Schedule. They are State responsibilities.

But Article 355 tells the Union to protect every State from attack and from unrest inside. It must also see that State governments run as the Constitution says.

So MHA keeps watch on security and issues advice. It shares intelligence. It also sends forces and money. It does this without taking away the rights the Constitution gives the States.

The Ministry of Home Affairs office buildings on Raisina Hill, New Delhi
The Home Affairs office on Raisina Hill, New Delhi, July 2014. Photo: U.S. Department of State, public domain. Credit: Wikimedia Commons.

1.3 What does this look like in a real case?

Here is an example of our own. A riot breaks out in a town. The local police deal with it first. Police is a State subject, so that is their job.

Now the unrest grows. Article 355 says the Union must protect the State from internal disturbance. This is where MHA steps in with advice and Central forces. It does not take over the State police.

1.4 What is the usual mistake here?

Students often think MHA runs the police. It does not. MHA manages the Central Armed Police Forces. It also supports the States. Day-to-day policing stays with each State.

1.5 Who was the first Home Minister?

Sardar Vallabhbhai Patel took the oath on 15 August 1947. He was the first Deputy Prime Minister of free India. He was also its first Home Minister.

True or false: Police is a Union subject, so States have no role in it.
2

How is MHA organised?

2.1 Which departments does it have?

The MHA page lists six departments.

Departments of the Ministry of Home Affairs
DepartmentWhat it deals with
Border ManagementBorders, including coastal borders.
Internal SecurityThe Indian Police Service, the Central Police Forces and internal security.
Jammu, Kashmir and Ladakh AffairsThose Union Territories and related matters.
HomeNotices of high office, the Census, and registration of births and deaths.
Official LanguageConstitution rules and the Official Languages Act, 1963.
StatesCentre-State and Inter-State relations, and the administration of Union Territories.

Source: Ministry of Home Affairs, Departments of MHA. Wording shortened.

The Ministry of Home Affairs at a glanceMinistry of Home AffairsUnion Home SecretaryBorderManagementInternalSecurityJ&K andLadakhHomeOfficialLanguageStatesSeven Central Armed Police Forces, as listed on the MHA pageARBSFCISFCRPFITBPNSGSSBOriginal chart. The departments and forces are named on the MHA Departments and CAPF pages.
Original chart of the departments and forces named in this lesson.

2.2 Who ties them together?

The page says the departments are not sealed off from each other. They all work under the Union Home Secretary and are linked.

2.3 Why does the split into departments help?

This is our own reading of the table. Each department has a narrow job. You can find the right office by the name of the topic. Census work sits in one place. Border work sits in another.

2.4 How do you use the table in an exam?

Take a worked example. A question asks which department deals with the Census. Scan the table for that word. It appears under Home, so the answer is Home.

Now the usual mistake. Many students pick Internal Security, because it sounds like the biggest department. It is only one of six. Its job is the police service, the Central Police Forces and internal security.

True or false: The Department of Official Language deals with the Census.
3

Which forces report?

3.1 How many forces are on the list?

The MHA page on Central Armed Police Forces names seven.

  • Assam Rifles (AR)
  • Border Security Force (BSF)
  • Central Industrial Security Force (CISF)
  • Central Reserve Police Force (CRPF)
  • Indo-Tibetan Border Police (ITBP)
  • National Security Guard (NSG)
  • Sashastra Seema Bal (SSB)

3.2 How did the CRPF get its name?

On 28 December 1949 an Act of Parliament renamed the force the Central Reserve Police Force. The CRPF says Sardar Patel, then Home Minister, shaped its wider role for the new nation.

3.3 What does the CISF protect?

The CISF was formed under the 50th Act of Parliament in 1968. The Home Ministry’s charter says it began to secure public sector undertakings and government installations.

3.4 Who controls the Assam Rifles in the field?

The Assam Rifles is on the MHA list. But the Home Ministry’s 1991-92 annual report said most of the force worked in the North-East under the operational control of the Army.

That report is old. Treat the point as a dated fact, and check a recent MHA report before relying on it today.

3.5 Why do the seven names matter in an exam?

A question often asks you to pick the odd one out. The MHA page gives you the full list, so you can test each name against it. A force that is not on the list is the answer.

3.6 What are the usual mistakes?

  • Wrong count: people say five. The MHA page lists seven.
  • Forgotten names: AR and SSB are often left out.
  • Army mix-up: the Assam Rifles is on the MHA list. It is not an Army unit.
True or false: The MHA page lists five Central Armed Police Forces.

Good to Know · NIA, CCTNS and NDMA

4

NIA and CCTNS

4.1 What is the NIA?

The National Investigation Agency was set up under the NIA Act, 2008. The Home Ministry calls it the Central Counter Terrorism Law Enforcement Agency.

A Home Ministry reply in the Rajya Sabha says it was set up after the 26/11 Mumbai attacks.

4.2 What is CCTNS?

The Crime and Criminal Tracking Network and Systems is a project begun in June 2009. It aims to build one connected system for policing at the police station level.

4.3 Why was the NIA created?

The Home Ministry’s reply says it was set up after the 26/11 Mumbai attacks. The aim was a central agency for terror cases. That is why the Ministry calls it the Central Counter Terrorism Law Enforcement Agency.

4.4 How are the NIA and CCTNS different?

People mix them up. The NIA is an agency. It exists under an Act of 2008. CCTNS is a project. It builds a connected system for police stations. One investigates. The other links records.

True or false: The NIA Act was enacted in 2008.
5

Who runs NDMA?

5.1 What does the Disaster Management Act say?

Section 3 sets up the NDMA, the national disaster body. The Prime Minister is its chair because of that post.

The chair picks up to nine other members. The chair may name one of them vice-chair.

5.2 How big can the NDMA be?

Here is our own sum. The chair is one person. The chair picks up to nine others. So the body can have at most ten people, counting the chair.

5.3 What is the usual mistake?

Because the Home Ministry looks after disaster management, students guess that the Home Minister chairs the NDMA. The Act says otherwise. The Prime Minister is the Chairperson, because of holding that office.

True or false: The Home Minister chairs the National Disaster Management Authority.

Exam Practice

6

Exam traps

6.1 Which mix-ups are common?

  • Police: a State subject. MHA acts through Article 355 and advice.
  • CAPFs: seven on the MHA list, not five.
  • NDMA: the Prime Minister chairs it, not the Home Minister.
  • NIA: an Act of 2008.
  • CRPF: renamed by an Act on 28 December 1949.
  • First Home Minister: Sardar Vallabhbhai Patel, from 15 August 1947.

6.2 How do you solve a statement question step by step?

UPSC often gives three or four statements and asks which are correct. Do not read them all at once. Test each statement alone, against one fact from this lesson.

  • Step 1: find the key word, such as police, seven or chairs.
  • Step 2: recall the matching fact.
  • Step 3: mark the statement right or wrong before you move on.
  • Step 4: only then read the answer options.

Now try a practice set written for this lesson. It is not a past exam question. Consider these statements about the Ministry of Home Affairs.

Walk-through of four statements
StatementVerdictWhy
1. Police is a Union subject.WrongPolice is on the State List. The Union acts through Article 355 and advice.
2. The MHA page lists seven Central Armed Police Forces.RightThe list is AR, BSF, CISF, CRPF, ITBP, NSG and SSB.
3. The Home Minister chairs the NDMA.WrongSection 3 makes the Prime Minister the Chairperson.
4. The NIA was set up under an Act of 2008.RightThe Home Ministry names the National Investigation Agency Act, 2008.

Only statements 2 and 4 are right. Verdicts rest on facts sourced in cards 1, 3, 4 and 5.

Think it through: A question says the Union cannot act on law and order because it is a State subject. What is the best reply?

Article 355 makes the Union protect each State from unrest inside it. The Union helps with forces, intelligence and advice.

Remember this

  • Police: State List. MHA acts through Article 355.
  • Departments: six, under the Union Home Secretary.
  • CAPFs: seven on the MHA page.
  • CRPF: renamed by an Act, 28 December 1949.
  • NIA: set up under the 2008 Act.
  • NDMA: Prime Minister is Chairperson.

Explain it back: If police is a State subject, how does the Home Ministry still help keep States secure?

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MCQ on the Ministry of Home Affairs

Try 8 practice questions on the Home Ministry, its forces, the NIA and the NDMA.

🎲 More Polity Practice

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India’s National Disaster Management Authority (NDMA), the country’s apex body for disaster management, was established under the?

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Question 1 of 1

What does the Ministry of Home Affairs handle?

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Question 1 of 1

Who was independent India’s first Home Minister?

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Question 1 of 1

The Central Armed Police Forces function under which ministry?

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Question 1 of 1

Which Central Armed Police Force is specifically responsible for protecting industrial undertakings and vital installations?

0 of 1 answered

Question 1 of 1

Which Border Guarding Force, though administratively under the Home Ministry, comes under Army operational control during counter-insurgency deployments?

0 of 1 answered

Question 1 of 1

The force was renamed the Central Reserve Police Force through the CRPF Act, enacted on which date, on the initiative of which leader?

0 of 1 answered

Question 1 of 1

In which year did the Ministry of Home Affairs initiate the CCTNS project?
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