EXAM SYLLABUS

The IB ACIO exam has two stages: Tier 1 (Prelims) and Tier 2 (Mains), followed by an Interview. Tier 1 is objective and tests general awareness, quantitative aptitude, logical/analytical ability, and English language. Tier 2 is descriptive, focusing on essay writing, precis, comprehension, and grammar. The interview assesses personality, intelligence, communication skills, and awareness of current affairs. Tier 1 has negative marking, and Tier 2 evaluates writing and analytical ability.

The exam is conducted in two stages: Tier 1 (Preliminary) and Tier 2 (Mains), followed by an Interview.

Tier 2 – Mains Exam (Descriptive Type)

IB ACIO Tier-2 Syllabus 2025-26 (For Exam on 11 January 2026)

1. Essay Writing (20 marks)

Candidates choose 1 topic out of 4–5 options and write 300–400 words. Key Areas/Expected Topics (based on previous cycles & current relevance):

National Security & Internal Security Challenges

Terrorism, Naxalism, Border Issues, North-East Insurgency

Cyber Security & Data Privacy

Role of Technology/AI in Intelligence & Governance

India’s Foreign Policy (Neighbourhood First, Act East, Indo-Pacific)

Socio-Economic Issues: Poverty, Unemployment, Farmer Distress, Women Safety

Environmental Issues: Climate Change, Disaster Management

Governance & Reforms: Digital India, Good Governance, Corruption

Current Affairs-based: Any major event from 2024–2025 (e.g., G20 outcomes, new criminal laws, Agnipath scheme, etc.)

2. English Comprehension (10 marks)

One unseen passage (250–350 words)

Questions typically include:

Direct factual questions

Inference-based questions

Vocabulary (synonyms/antonyms from passage)

Short summary or title suggestion

Focus: Reading speed, grasping central idea, precise answers

3. Long Answer Type Questions (20 marks – 2 questions × 10 marks each)

Compulsory analytical/descriptive questions (150–200 words each) from:

Current Affairs (National & International)

Economy & Development (Budget highlights, schemes, GDP, inflation)

Science & Technology (Recent developments, ISRO, DRDO, AI, 5G/6G)

Internal & External Security Scenarios

Socio-Political Issues (Federalism, Judiciary, Election reforms)

Intelligence-related themes (Role of IB, challenges in modern intelligence)

Overall Focus Areas for Tier-2

Last 18–24 months Current Affairs (Jan 2024 – Jan 2026)

Government Schemes & Policies

Security & Defence-related topics (highest weightage)

Basic Economics & Social Issues

Strong command of structured English writing

EXAM PATTERN

The IB ACIO Exam Pattern for Tier II is detailed here. Candidates should carefully review the subject-wise marks distribution, total questions, negative marking, and minimum qualifying marks to devise a focused and effective preparation strategy.

IB ACIO Tier II Exam

Mode: Offline (Pen-and-Paper / Descriptive writing)

Total Marks: 50

Duration: 1 hour (60 minutes)

Question Type: Descriptive (handwritten answers required)

Medium: English only

Negative Marking: None

Qualifying Marks: Minimum 33% (approximately 17 out of 50) in Tier II (as per standard rule; candidates must secure this to qualify for Interview)

Purpose: Tests clarity of thought, analytical skills, expression, grammar, structure, and awareness of contemporary issues (especially relevant to national security, intelligence, and socio-economic topics)

Weightage in Final Merit: Tier II marks are added to Tier I and Interview for final selection.

ELIGIBILIY CRITERIA

Only candidates who qualify in Tier I will be eligible to appear for the Tier II exam. Candidates applying for the IB ACIO exam must fulfill all the required eligibility conditions. If any candidate does not meet the criteria such as age limit, minimum educational qualification, or other required conditions, their candidature will be rejected by the concerned authority. The eligibility criteria for IB ACIO are decided by the exam conducting authority.

The candidate’s eligibility for IB ACIO Examination is based on the fulfillment of the following conditions:-

1. Nationality
2. Age Limit & Relaxations
3. Educational Qualifications
4. Medical Standards

Nationality

Only Indian Candidates are eligible to apply for IB ACIO Examination.

Age Limit

The minimum age limit prescribed for the post of IB ACIO is 18 Years and maximum of 27 Years. Age relaxation is applicable as per the various categories:- 

Age Relaxation 

Education Qualification

To be eligible for IB ACIO following are the details : 

Medical Standards

1. For the post mentioned in here, only physically and mentally fit candidates are allowed.
2. The above-mentioned post is not identified suitable for any category of person with disabilities/pwd i.e. HH,OH,VH or Autism. Hence, they are advised not to apply.
3. Candidates need to keep this thing in mind that based on the combined performance in Tier-I, Tier-II and Tier-III/Interview, the candidates would be shortlisted for final selection subject to their Character and Antecedent verification followed by medical examination, etc.
4. Candidates appearing in interviews may be subject to a Psychometric/ Aptitude Test which will be a part of the interview.

IMPORTANT DATES

As of 24 Feb 2026, the IB ACIO Tier-2 exam result, Conducted on 11 January 2026 has not yet been released on the official website (mha.gov.in). Reliable sources indicate it is expected to be available on last Feb or begning of March 2026. Candidates should regularly check the official MHA portal (or the recruitment login link) using their User ID and Password to download the Result as soon as it goes live. Keep login credentials ready and monitor for the direct download link.

EXAM ANALYSIS

Here’s a detailed exam analysis for the upcoming IB ACIO Tier II Exam 2026, based on the previous year’s (2025) exam cycle, including when it was last conducted, exact dates, timings/shifts, pattern, difficulty expectations, cut-offs, and what to expect for 2026:

1. When the Last Tier II Exam Was Conducted

The IB ACIO Tier II (Descriptive) Exam for the 2025 recruitment cycle was scheduled on 11 January 2026 for candidates who qualified in Tier I.

Before this, the Tier I exam was conducted on 16, 17 & 18 September 2025.

This means that the Tier II exam typically takes place about 3–4 months after the Tier I exam.

2. Exact Date, Time & Shift Details (2025 Tier II)

Tier II Exam Date: 11 January 2026 (for the 2025 cycle)

The City Intimation Slip for Tier II was released on 31 December 2025, showing candidates their exam city and tentative timing.

Admit Cards were expected to be released about a week before the exam (7–8 January 2026).

Time & Shift Details

For Tier II, there’s usually only one shift (unlike Tier I):

Reporting Time: About 8:30 AM (exact reporting time is specified on the admit card)

Exam Duration: 1 hour (60 minutes)

3. Exam Pattern – Tier II (Descriptive)

The IB ACIO Tier II Exam is descriptive in nature

Expected Structure

Mode: Offline (Pen-and-paper Descriptive)

Total Marks: Usually 50 marks (varies slightly by year)

Time Duration: 1 Hour

Sections Covered:

Essay Writing (Candidates write a short essay or a long passage on a given topic)

English Comprehension / Precis Writing / High-order language skills

This test evaluates written communication ability, clarity of expression, analytical ability, and command over English language structure.

4. Difficulty Level & Trends (Based on 2025)

Since the official Tier II paper for 2025 was after Tier I and descriptive, the general expectations are:

Overall Difficulty:

Moderate to Slightly Above Moderate, because descriptive papers require clear writing and structured responses.

Section Insight:

Essay Writing: Requires good expression, relevance to topic, structured paragraphs, and clarity.

English Language Section: Focuses on comprehension, precis skills, grammar rules, and correct structure.

Generally, candidates who are good at basic grammar, comprehension, and essay writing perform better in Tier II.

5. Expected Cut-Offs for Tier II (2025 & 2026)

Official cut-offs for the Tier II exam are usually released after the evaluation of all answer sheets.

Trend from Past Years (Indicative, Not Official):

Previous IB ACIO descriptive cut-offs (illustrative examples from past cycles) show that candidates often need around these ranges:

UR: 30/50

OBC: 28/50

SC/ST: 25/50
(Exact official data can vary.)

These numbers are indicative, showing that most qualifiers score above the minimum qualifying mark, and final cut-offs depend on:

Difficulty of Tier II paper

Performance of candidates

Number of vacancies vs. number of qualified candidates

6. What This Means for 2026 Aspirants

Preparation Focus:

Strong written communication skills

Practice essay writing on multiple topics

Improve grammar, vocabulary, and precision skills

Manage time effectively during the 1-hour exam

Pattern & Strategy:

Tier II is descriptive, so mere MCQ practice is insufficient.

Work on structured answers and clarity of language.

Cut-Off Outlook:

Since this paper filters candidates for interview (Tier III), scoring well in Tier II is crucial.

Cut-offs here are usually competitive, though lower than Tier I scores, because total marks are smaller.

Summary – IB ACIO Tier II Exam 2026 Analysis

EXAM ANALYSIS

Here’s a detailed exam analysis for the upcoming IB ACIO Tier II Exam 2026, based on the previous year’s (2025) exam cycle, including when it was last conducted, exact dates, timings/shifts, pattern, difficulty expectations, cut-offs, and what to expect for 2026:

1. When the Last Tier II Exam Was Conducted

The IB ACIO Tier II (Descriptive) Exam for the 2025 recruitment cycle was scheduled on 11 January 2026 for candidates who qualified in Tier I.

Before this, the Tier I exam was conducted on 16, 17 & 18 September 2025.

This means that the Tier II exam typically takes place about 3–4 months after the Tier I exam.

2. Exact Date, Time & Shift Details (2025 Tier II)

Tier II Exam Date: 11 January 2026 (for the 2025 cycle)

The City Intimation Slip for Tier II was released on 31 December 2025, showing candidates their exam city and tentative timing.

Admit Cards were expected to be released about a week before the exam (7–8 January 2026).

Time & Shift Details

For Tier II, there’s usually only one shift (unlike Tier I):

Reporting Time: About 8:30 AM (exact reporting time is specified on the admit card)

Exam Duration: 1 hour (60 minutes)

3. Exam Pattern – Tier II (Descriptive)

The IB ACIO Tier II Exam is descriptive in nature

Expected Structure

Mode: Offline (Pen-and-paper Descriptive)

Total Marks: Usually 50 marks (varies slightly by year)

Time Duration: 1 Hour

Sections Covered:

Essay Writing (Candidates write a short essay or a long passage on a given topic)

English Comprehension / Precis Writing / High-order language skills

This test evaluates written communication ability, clarity of expression, analytical ability, and command over English language structure.

4. Difficulty Level & Trends (Based on 2025)

Since the official Tier II paper for 2025 was after Tier I and descriptive, the general expectations are:

Overall Difficulty:

Moderate to Slightly Above Moderate, because descriptive papers require clear writing and structured responses.

Section Insight:

Essay Writing: Requires good expression, relevance to topic, structured paragraphs, and clarity.

English Language Section: Focuses on comprehension, precis skills, grammar rules, and correct structure.

Generally, candidates who are good at basic grammar, comprehension, and essay writing perform better in Tier II.

5. Expected Cut-Offs for Tier II (2025 & 2026)

Official cut-offs for the Tier II exam are usually released after the evaluation of all answer sheets.

Trend from Past Years (Indicative, Not Official):

Previous IB ACIO descriptive cut-offs (illustrative examples from past cycles) show that candidates often need around these ranges:

UR: 30/50

OBC: 28/50

SC/ST: 25/50
(Exact official data can vary.)

These numbers are indicative, showing that most qualifiers score above the minimum qualifying mark, and final cut-offs depend on:

Difficulty of Tier II paper

Performance of candidates

Number of vacancies vs. number of qualified candidates

6. What This Means for 2026 Aspirants

Preparation Focus:

Strong written communication skills

Practice essay writing on multiple topics

Improve grammar, vocabulary, and precision skills

Manage time effectively during the 1-hour exam

Pattern & Strategy:

Tier II is descriptive, so mere MCQ practice is insufficient.

Work on structured answers and clarity of language.

Cut-Off Outlook:

Since this paper filters candidates for interview (Tier III), scoring well in Tier II is crucial.

Cut-offs here are usually competitive, though lower than Tier I scores, because total marks are smaller.

Summary – IB ACIO Tier II Exam 2026 Analysis

STUDY TIPS

Focus on strong basics first. For Tier 1, practice General Awareness, Quant, Reasoning, and English daily, learn shortcuts, and revise current affairs. For Tier 2, write essays, practice precis, and improve reading comprehension. Take regular mock tests, analyze mistakes, and manage your time. Maintain notes for quick revision and stay consistent.

1. Understand the Exam Pattern:

Tier 1 (Prelims / Objective): General Awareness, Quantitative Aptitude, Reasoning, English.

Tier 2 (Mains / Descriptive): Essay writing, precise writing, comprehension.

Interview / Tier 3: Personality, alertness, reasoning.

2. Create a Daily Routine:

Daily 3–4 hours for Tier 1 subjects.

Daily 1–2 hours for Tier 2 preparation.

Weekends can be used for mock tests and revision.

3. Tier 1 Preparation Tips:

General Awareness: Cover current affairs of last 6–12 months, basics of history, geography, polity, and science.

Quantitative & Reasoning: Practice 15–20 questions daily, focus on shortcuts and tricks.

English: Learn 10 new words daily, practice comprehension, and revise grammar basics.

4. Tier 2 Preparation Tips:

Practice essay writing daily (150–200 words).

Summarize short news articles for precise writing practice.

Reading comprehension exercises help improve speed and understanding.

5. Mock Tests & Revision:

Take a full-length mock test every 10–15 days.

Note your mistakes and revise them.

Focus on time management during practice.

6. Health & Routine:

Ensure 6–7 hours of sleep daily.

Do light exercise and maintain a proper diet for an alert mind.

1. Understand the Exam Pattern:

Tier 1 (Prelims / Objective): General Awareness, Quantitative Aptitude, Reasoning, English.

Tier 2 (Mains / Descriptive): Essay writing, precise writing, comprehension.

Interview / Tier 3: Personality, alertness, reasoning.

2. Create a Daily Routine:

Daily 3–4 hours for Tier 1 subjects.

Daily 1–2 hours for Tier 2 preparation.

Weekends can be used for mock tests and revision.

3. Tier 1 Preparation Tips:

General Awareness: Cover current affairs of last 6–12 months, basics of history, geography, polity, and science.

Quantitative & Reasoning: Practice 15–20 questions daily, focus on shortcuts and tricks.

English: Learn 10 new words daily, practice comprehension, and revise grammar basics.

4. Tier 2 Preparation Tips:

Practice essay writing daily (150–200 words).

Summarize short news articles for precise writing practice.

Reading comprehension exercises help improve speed and understanding.

5. Mock Tests & Revision:

Take a full-length mock test every 10–15 days.

Note your mistakes and revise them.

Focus on time management during practice.

6. Health & Routine:

Ensure 6–7 hours of sleep daily.

Do light exercise and maintain a proper diet for an alert mind.

STUDY PLANS

The IB ACIO Tier II study plan should focus on improving writing skills, analytical thinking, and clarity of expression, as this stage mainly includes descriptive questions such as essay writing and English comprehension. Candidates should regularly practice essays on current affairs, national security, social issues, and government policies to develop structured and well-organized answers.???????

One Month Plan (Quick Preparation / Revision)

Goal: Cover all topics quickly, focus on speed and accuracy, start mocks.

Daily Routine (5–6 hours):

Tier 1:

General Awareness: 1.5 hours (current affairs + basics)

Quant & Reasoning: 1.5 hours (shortcuts + practice)

STUDY TIPS

Focus on strong basics first. For Tier 1, practice General Awareness, Quant, Reasoning, and English daily, learn shortcuts, and revise current affairs. For Tier 2, write essays, practice precis, and improve reading comprehension. Take regular mock tests, analyze mistakes, and manage your time. Maintain notes for quick revision and stay consistent.

1. Understand the Exam Pattern:

Tier 1 (Prelims / Objective): General Awareness, Quantitative Aptitude, Reasoning, English.

Tier 2 (Mains / Descriptive): Essay writing, precise writing, comprehension.

Interview / Tier 3: Personality, alertness, reasoning.

2. Create a Daily Routine:

Daily 3–4 hours for Tier 1 subjects.

Daily 1–2 hours for Tier 2 preparation.

Weekends can be used for mock tests and revision.

3. Tier 1 Preparation Tips:

General Awareness: Cover current affairs of last 6–12 months, basics of history, geography, polity, and science.

Quantitative & Reasoning: Practice 15–20 questions daily, focus on shortcuts and tricks.

English: Learn 10 new words daily, practice comprehension, and revise grammar basics.

4. Tier 2 Preparation Tips:

Practice essay writing daily (150–200 words).

Summarize short news articles for precise writing practice.

Reading comprehension exercises help improve speed and understanding.

5. Mock Tests & Revision:

Take a full-length mock test every 10–15 days.

Note your mistakes and revise them.

Focus on time management during practice.

6. Health & Routine:

Ensure 6–7 hours of sleep daily.

Do light exercise and maintain a proper diet for an alert mind.

1. Understand the Exam Pattern:

Tier 1 (Prelims / Objective): General Awareness, Quantitative Aptitude, Reasoning, English.

Tier 2 (Mains / Descriptive): Essay writing, precise writing, comprehension.

Interview / Tier 3: Personality, alertness, reasoning.

2. Create a Daily Routine:

Daily 3–4 hours for Tier 1 subjects.

Daily 1–2 hours for Tier 2 preparation.

Weekends can be used for mock tests and revision.

3. Tier 1 Preparation Tips:

General Awareness: Cover current affairs of last 6–12 months, basics of history, geography, polity, and science.

Quantitative & Reasoning: Practice 15–20 questions daily, focus on shortcuts and tricks.

English: Learn 10 new words daily, practice comprehension, and revise grammar basics.

4. Tier 2 Preparation Tips:

Practice essay writing daily (150–200 words).

Summarize short news articles for precise writing practice.

Reading comprehension exercises help improve speed and understanding.

5. Mock Tests & Revision:

Take a full-length mock test every 10–15 days.

Note your mistakes and revise them.

Focus on time management during practice.

6. Health & Routine:

Ensure 6–7 hours of sleep daily.

Do light exercise and maintain a proper diet for an alert mind.

STUDY PLANS

The IB ACIO Tier II study plan should focus on improving writing skills, analytical thinking, and clarity of expression, as this stage mainly includes descriptive questions such as essay writing and English comprehension. Candidates should regularly practice essays on current affairs, national security, social issues, and government policies to develop structured and well-organized answers.???????

One Month Plan (Quick Preparation / Revision)

Goal: Cover all topics quickly, focus on speed and accuracy, start mocks.

Daily Routine (5–6 hours):

Tier 1:

General Awareness: 1.5 hours (current affairs + basics)

Quant & Reasoning: 1.5 hours (shortcuts + practice)

English: 1 hour (vocabulary + comprehension)

Tier 2:

Essay / Precise Writing: 1 hour (daily practice with current topics)

Weekly Plan:

Day 6: Full-length mock test (Tier 1) + analysis

Day 7: Revision of weak topics

Tips:

Focus on previous year questions

Use short notes for GA

Practice solving questions within time limits

3-Month Plan (Moderate Preparation)

Goal: Build strong basics, practice regularly, improve speed.

Daily Routine (4–5 hours):

Tier 1:

GA: 1 hour (current affairs, static GK)

Quant: 1 hour (daily problem-solving, shortcuts)

Reasoning: 1 hour (logical, puzzles, seating arrangements)

English: 30–45 min (vocabulary, reading comprehension, grammar)

Tier 2:

Essay/Precise: 30–45 min daily

Reading comprehension: 15–20 min

Weekly Plan:

1–2 Full-length mock tests (analyze mistakes carefully)

Focus 1 day on weak topics

Revise current affairs weekly

Tips:

Maintain GA notes for revision

Track time per section for speed

Practice writing essays and precis regularly

6-Month Plan (Extended / Thorough Preparation)

Goal: Strong command over all sections, consistent practice, and regular mocks.

Daily Routine (3–4 hours initially, 5–6 closer to exam):

Tier 1:

GA: 1–1.5 hours (current affairs, history, geography, polity, science)

Quant: 1 hour (shortcuts, practice problems, previous year papers)

Reasoning: 45 min–1 hour (daily puzzles + logical reasoning)

English: 30–45 min (vocabulary, comprehension, grammar)

Tier 2:

Essay/Precise: 45 min daily

Reading comprehension: 15–20 min

Weekly Plan:

1–2 Mock tests + analysis

1 day for revision of weak sections

Monthly revision of GA + current affairs

Tips:

Keep a notebook for GA and current affairs

Solve previous 5–10 years’ papers

Practice speed + accuracy in Tier 1

Write at least 3–4 essays per week for Tier 2

OVERVIEW

The Intelligence Bureau Assistant Central Intelligence Officer (IB ACIO) Exam 2025-26 is a national-level recruitment test conducted by the Ministry of Home Affairs (MHA) to select candidates for the post of ACIO Grade-II/Executive (Group ‘C’) in the Intelligence Bureau. The exam is held as per requirement and not on an annual basis. In this cycle, nearly 6–7 lakh candidates registered, and around 5 lakh appeared for the Tier-1 test.

The selection process continues with the upcoming Tier-2 exam result, followed by interviews for shortlisted candidates. Stay updated via the official website mha.gov.in for any last-minute changes.

SELECTION PROCESS

The IB ACIO selection process consists of three stages. Candidates who pass the Tier 1 Exam, that is qualifying are eligible for Tier 2 exam.Details are given bellow.

Tier 1 (Prelims) – Objective test to shortlist candidates for Tier 2.

Tier 2 (Mains) – Descriptive test assessing essay, precis, comprehension, and grammar skills.

Interview/Personality Test – Evaluates intelligence, communication, personality, and awareness of current affairs.

Final selection is based on combined performance in Tier 2 and Interview; Tier 1 is only qualifying.