UPSC CSE Exam Pattern 2027; Check Prelims & Mains Pattern
UPSC IAS Exam Pattern 2027 consists of three stages: Prelim Exam, Main Exam and Personality Test (Interview). UPSC 2027 prelims exam pattern comprises two objective-type papers carrying 200 marks each. Candidates who qualify for the Prelim Exam proceed to the Mains, which consists of nine descriptive papers. The final stage is the Personality Test, which carries 275 marks. The final merit list is prepared based on the marks obtained in the Mains merit papers and the Interview, for a total of 2,025 marks.
UPSC IAS Exam Pattern 2027 Highlights
| Particulars | Details |
|---|---|
| Conducting Body | Union Public Service Commission (UPSC) |
| Exam Stages | Prelims, Mains and Interview |
| Prelims Exam Mode | Offline, objective-type |
| Mains Exam Mode | Offline, descriptive |
| Prelims Papers | 2 |
| Mains Papers | 9 |
| Prelims Total Marks | 400 |
| Mains Merit Marks | 1,750 |
| Interview Marks | 275 |
| Total Marks for Final Merit | 2,025 |
| Negative Marking | Applicable in both Prelims papers |
| CSAT Qualifying Marks | 33% |
| Final Merit Calculation | Mains merit papers + Interview |
Note: The exam pattern is based on the established UPSC Civil Services exam structure. Candidates should verify the final rules in the official 2027 notification.
UPSC IAS Prelims Exam Pattern 2027
UPSC IAS Prelims Exam 2027 is the first stage of the IAS selection process. It consists of two objective-type papers: General Studies Paper I and General Studies Paper II, also known as the Civil Services Aptitude Test (CSAT).
| Paper | Total Marks | No. of Questions | Marks per Question |
|---|---|---|---|
| Paper 1: General Studies | 200 | 100 | 2 |
| Paper 2: CSAT (Qualifying only) | 200 | 80 | 2.5 |
Key Pointers:
- Both papers of the Prelims exam will be 2 hours each.
- Prelims Paper II (CSAT) is qualifying in nature, requiring candidates to secure at least 33% out of 200 marks to be eligible for UPSC Mains exam.
- Negative Marking: 1/3 mark will be deducted for every incorrect answer.
UPSC IAS Mains Exam Pattern 2027
UPSC IAS Mains Exam is the second stage for the IAS selection process. Candidates who qualify for the Prelimsexam are eligible to appear for the Main exam, subject to the applicable UPSC requirements.
| Paper | Type | Marks |
|---|---|---|
| Paper A – Indian Language (qualifying) | Language paper from the 8th Schedule | 300 |
| Paper B – English (qualifying) | Language paper | 300 |
| Essay | Conventional (essay-type) | 250 |
| GS Paper I(Indian Heritage & Culture; History; Society; Geography) | Conventional | 250 |
| GS Paper II(Polity, Governance, Social Justice, International Relations) | Conventional | 250 |
| GS Paper III(Economy, Science & Tech, Environment, Security, Disaster Management) | Conventional | 250 |
| GS Paper IV – Ethics, Integrity & Aptitude | Conventional | 250 |
| Optional Subject – Paper I | Conventional | 250 |
| Optional Subject – Paper II | Conventional | 250 |
| Total Written (excluding qualifying papers) | — | 1750 |
Note: Qualifying Paper A in UPSC IAS Mains requires candidates to choose one Indian Language from the Eighth Schedule of the Constitution of India. The list of languages and their script is given in the table below:
UPSC IAS 2027 Language and Scripts
UPSC IAS Mains Exam covers a qualifying Indian language paper. The following table lists the available languages and their respective scripts.
| Particulars | Details |
|---|---|
| Assamese | Assamese |
| Bengali | Bengali |
| Gujarati | Gujarati |
| Hindi | Devanagari |
| Kannada | Kannada |
| Kashmiri | Persian |
| Konkani | Devanagari |
| Malayalam | Malayalam |
| Manipuri | Bengali |
| Marathi | Devanagari |
| Nepali | Devanagari |
| Odia | Odia |
| Punjabi | Gurmukhi |
| Sanskrit | Devanagari |
| Sindhi | Devanagari or Arabic |
| Tamil | Tamil |
| Telugu | Telugu |
| Urdu | Persian |
| Bodo | Devanagari |
| Dogri | Devanagari |
| Maithili | Devanagari |
| Santhali | Devanagari or Olchiki |
IAS Interview Exam Pattern 2027
IAS Interview Exam is the final stage of the IAS selection process. Candidates who qualify in the Mains are called for the Interview, which carries 275 marks. The UPSC board evaluates qualities such as:
- Mental alertness and critical thinking
- Clarity of expression and confidence
- Awareness of national and international issues
- Leadership and decision-making skills
- Integrity, ethics, and suitability for administrative services
UPSC IAS Interview 2026 aims to identify candidates who possess the right temperament, maturity, and vision to serve the nation effectively. Consistent awareness of current affairs and balanced opinions on social and political issues can significantly enhance performance in this final round.
UPSC IAS Marking Scheme 2027
UPSC IAS Marking Scheme 2027 varies from paper to paper.
- General Studies Paper I carries 200 marks.
- CSAT Paper II carries 200 marks and is qualifying in nature.
- One-third of the marks assigned to a question are deducted for every incorrect answer in Prelims.
- Each Mains merit-based paper carries 250 marks.
- The Personality Test carries 275 marks.
UPSC IAS Syllabus 2027
UPSC IAS Syllabus 2027 covers three stages: Prelims, Mains, and Interview. Prelims includes General Studies and CSAT, Mains covers Essay, General Studies and Optional Subjects, while the Interview assesses candidates' personality and administrative aptitude.
UPSC IAS Prelims Syllabus 2027
UPSC IAS Prelims syllabus includes General Studies Paper 1 and CSAT (Paper 2).
| Paper | Topics | Syllabus |
|---|---|---|
| GS Paper 1 | Current Affairs | National and international events |
| History | Indian History and National Movement | |
| Geography | Physical, Indian and World Geography | |
| Polity | Constitution, Governance and Panchayati Raj | |
| Economy | Economic and Social Development | |
| Environment | Ecology, Biodiversity and Climate Change | |
| General Science | Basic scientific concepts | |
| CSAT | Comprehension | Reading comprehension |
| Reasoning | Logical and analytical reasoning | |
| Communication | Interpersonal and communication skills | |
| Decision Making | Problem-solving and decision-making | |
| Mental Ability | General mental ability | |
| Numeracy | Basic numeracy (Class 10 level) | |
| Data Interpretation | Charts, graphs, tables and data sufficiency |
UPSC IAS Mains Syllabus 2027
UPSC IAS Mains includes Essay, four General Studies papers, two Optional papers, and two qualifying language papers.
| Paper | Topics | Syllabus |
|---|---|---|
| Essay | Essay Writing | Social, political, economic and philosophical topics |
| GS Paper 1 | History and Culture | Indian culture, Modern History and Freedom Struggle |
| World History | World Wars, industrialisation and colonisation | |
| Society | Diversity, women, poverty and urbanisation | |
| Geography | Physical, Indian and World Geography | |
| GS Paper 2 | Constitution and Polity | Constitution, Parliament, Judiciary and Federalism |
| Governance | Policies, transparency and accountability | |
| Social Justice | Welfare schemes, health and education | |
| International Relations | Bilateral relations and global institutions | |
| GS Paper 3 | Economy | Growth, employment and resource mobilisation |
| Agriculture | Cropping patterns, irrigation and food processing | |
| Science and Technology | Developments and applications | |
| Environment | Conservation and climate change | |
| Disaster Management | Preparedness and mitigation | |
| Internal Security | Cybersecurity and terrorism | |
| GS Paper 4 | Ethics | Human values and ethical principles |
| Aptitude | Integrity, impartiality and objectivity | |
| Emotional Intelligence | Concepts and applications | |
| Governance | Probity, transparency and accountability | |
| Case Studies | Administrative and ethical dilemmas | |
| Optional Papers I & II | Optional Subject | Any one subject selected from the UPSC-approved list |
| Language Paper A | Indian Language | Comprehension, précis, essay and translation |
| Language Paper B | English | Comprehension, précis, vocabulary and essay |
UPSC IAS Interview Syllabus 2027
UPSC IAS Interview syllabus 2027 assesses candidates' personality, communication skills and suitability for civil services. It evaluates mental alertness, decision-making, leadership, current affairs awareness and ethical values.
| Assessment Areas | Syllabus |
|---|---|
| Mental Ability | Alertness and critical thinking |
| Communication | Clarity and expression |
| Decision Making | Judgement and problem-solving |
| Leadership | Leadership and social awareness |
| Current Affairs | National and international events |
| Personal Profile | Education, interests and achievements |
| Ethics | Integrity and moral values |
UPSC IAS Exam Pattern 2027 Preparation Tips
Understanding the exam pattern can help candidates plan their preparation effectively. Some of IAS Exam Pattern Preparation Tips as mentioned below:
- Understand the syllabus: Read the official UPSC syllabus carefully and identify the subjects and topics covered in each paper.
- Practise previous years' questions: Solve past question papers to understand the question format, difficulty level and recurring themes.
- Prepare for CSAT: Practise comprehension, logical reasoning, numeracy and data interpretation regularly, even if these subjects are not your strengths.
- Develop answer-writing skills: Practise writing structured answers for Mains, with clear introductions, relevant arguments and concise conclusions.
- Choose an optional subject carefully: Compare the syllabus, your interest in the subject and the availability of reliable preparation resources before making a decision.
- Follow current affairs: Read reliable news sources and connect contemporary developments with UPSC syllabus.
UPSC IAS exam requires a clear understanding of its syllabus, exam pattern, and selection process. Candidates should stay updated with official notifications and prepare strategically to perform well in each stage of theexam.
IAS Exam Pattern 2027 FAQs
Ques: How many stages are included in UPSC CSE Exam Pattern 2026?
Ans: UPSC IAS Exam consists of three stages: Prelims, Mains, and the Personality Test. Prelims has two objective papers, Mains has nine descriptive papers, and the Interview carries 275 marks.
Ques: How many papers are there in UPSC CSE 2026 Mains stage?
Ans: UPSC CSE Mains 2026 includes nine papers, out of which two are qualifying language papers, one Essay paper, four General Studies papers, and two Optional Subject papers.
Ques: How many marks are required to qualify for CSAT?
Ans: Candidates must score at least 33% in CSAT, equivalent to 66 marks out of 200, to meet the qualifying requirement.
Ques: How is merit calculated in UPSC CSE Exam 2026?
Ans: In UPSC CSE 2026, merit is calculated based on the Mains written exam (1750 marks) and the Interview or Personality Test (275 marks).
Ques: Can candidates choose their writing medium in UPSC CSE 2026?
Ans: Yes, candidates can choose English or any other language listed in the Eighth Schedule of the Indian Constitution as their medium.
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