UPSC Prelims 2026 Analysis: What Was Asked in GS Paper I and CSAT

UPSC Prelims 2026 analysis usually arrives as a pie chart and a one-word verdict, and neither is much use until you can see the questions behind it. This one is built the slow way. We took all 100 questions of General Studies Paper I and all 80 of CSAT from the 24 May 2026 exam, sorted each one by subject and by format, and counted.

The aim is a count you can check, not a mood. Every date, vacancy figure and rule below comes from UPSC’s own notices and press releases, and where something isn’t official yet, such as the 2026 cut-off, we say so plainly instead of guessing.

One article can’t tell you your score or whether you’d have cleared. It can show where the marks sat, which question formats UPSC leaned on, and what that means for the next attempt. Question numbers refer to Series D throughout; the other three series carry the same questions in a different order.

UPSC Prelims 2026 at a Glance

The exam was held on 24 May 2026 in two sessions, and UPSC declared the result on 15 June. These are the facts that are settled, all from UPSC and PIB documents:

• GS Paper I: 100 questions, 200 marks, 9:30 AM to 11:30 AM. One question was dropped in the provisional key, so 99 count for scoring.
• CSAT (GS Paper II): 80 questions, 200 marks, 2:30 PM to 4:30 PM. No question was dropped. It is qualifying at 33%, which is 66 marks.
• Negative marking: one-third of the marks for a question are deducted for each wrong answer, in both papers.
• Candidates: nearly 5.49 lakh appeared, according to UPSC’s release of 27 May 2026.
• Provisional answer key: released on 27 May 2026, the first time UPSC has published one for this exam. Representations were open until 31 May, 6 PM.
• Result: press note dated 15 June 2026. 13,343 candidates were shortlisted for Mains against 1,016 notified vacancies.
• Not yet published: marks, cut-off marks and the final answer key. UPSC says these come only after the final result of CSE 2026.

That last line matters more than it looks. Any 2026 Prelims cut-off you see quoted today is someone’s estimate, however confidently it is written.

Subject-Wise Questions in GS Paper I

By our count, current affairs and international relations (19 questions) and economy (18) were the two biggest single subjects, while history came back strongly with 21 questions spread across ancient, cultural and modern topics. Medieval history got none.

Read the three history rows together and history is the largest block in the paper, which most first-day reactions missed.

One rule settled every tie: a question goes where its answer comes from, not where its topic sits in the news. The Madhav National Park question (Q22) is filed under environment because you answer it from protected-area knowledge, even though the tiger reserve notification was 2025 news.

Why Different Analyses Show Different Numbers

Most aspirants read two analyses of the same paper, find that one gives economy 18 questions and another gives it 11, and quietly decide one of them can’t count. Both can count. They are sorting differently.

About 20 of the 100 questions sit on the border between two subjects. A few of them:

• Q12 on the Hilton-Young Commission’s rupee-sterling rate is modern history to one reader and monetary economics to another.
• Q27 on the Moidams of the Ahom kingdom can be filed as heritage (art and culture) or as medieval history.
• Q48 on semiconductor plant locations is industrial policy (economy) or technology (S&T).
• Q60 on rare earth elements touches chemistry, mining geography and the National Critical Mineral Mission in one question.
• Q85 and Q93 on defense are security affairs to some and defense technology to others.

Our own topic-wise PYQ bank shows the effect clearly. It tags on broader subject lines and files the same 2026 paper as science and technology 20, history 18, environment 13, economy 11, polity 11, international relations 11, geography 8, art and culture 4 and a general studies bucket of 4.

So read any subject count as a range. A gap of five to seven questions in one subject, as with economy here, comes from where the border questions land, not from a counting error.

History Came Back Through Ancient India and Culture

Sixteen of the 21 history questions came from ancient India and art and culture, and not one asked about the Delhi Sultanate or the Mughals. The ancient questions were about sources and evidence:

• Rigvedic river names (Q3) and the evidence for Pleistocene river shifts (Q1)
• Sangam-age kings and their dynasties (Q5)
• the term kshetra-patni in the Atharvaveda (Q10)
• Pali references to coins and the move to a money economy (Q13)
• the Mankani plates and the place-value system (Q17)
• inferences from Harappan spindle-whorls, weights and houses (Q18)
• well irrigation in the Rigvedic period (Q20)

The culture questions were narrow and specific:

• the empty seat in early Buddhist art (Q2) and the Amaravati Stupa (Q4)
• Pandit Mallikarjun Mansur’s gharana (Q9) and the Carnatic raga that matches Raga Bilawal (Q11)
• Nagara-style shikharas (Q14) and the Bagh Caves murals (Q16)
• the Jaina forms of existence (Q15)
• the Moidams of the Tai-Ahom kingdom (Q27), the only medieval-era topic in the paper, asked as heritage

Modern history was small but analytical:

• why Subhas Chandra Bose formed the Forward Bloc in 1939 (Q6)
• British policy in Awadh after the 1856 annexation (Q7)
• separate electorates under the 1919 reforms (Q8)
• the Hilton-Young Commission (Q12)
• the Eka Movement and the Bardoli Satyagraha (Q19)

The ancient questions weren’t date recall. Q18 gave three Harappan findings and asked which inferences follow. Knowing that spindle-whorls turn up in houses wasn’t enough; you also had to see that large houses with private wells don’t prove a common property system, which is why the answer is 1 and 2 only.

On our PYQ bank’s own tagging, history had 7 questions in both 2023 and 2024, 14 in 2025 and 18 in 2026, so this paper continued a return that began a year earlier. The art and culture PYQ page tracks the culture side year by year.

Economy Tilted Toward Finance and Digital Markets

Eleven of the 18 economy questions were about financial products, payment systems or digital commerce, and most asked how the thing works rather than what it is called:

• dropshipping as an e-commerce model (Q52)
• the three sub-indices of the RBI’s Financial Inclusion Index (Q53)
• the objective of ONDC (Q54) and UPI versus the digital rupee (Q55)
• tokenization of real-world assets (Q56) and sustainability bonds (Q57)
• M1xchange and invoice discounting for MSMEs (Q58)
• aviation hull insurance and the Montreal Convention (Q61) and crowdfunding (Q62)
• the committees behind financial-sector reforms (Q63) and NBFC rules (Q64)

The other seven covered infrastructure, farming and macro ideas:

• the Sagarmala Programme (Q25) and Vizhinjam International Seaport (Q34)
• Rainfed Area Development under NMSA (Q38) and Oeko-Tex certification for Eri silk (Q39)
• semiconductor plant locations (Q48)
• the crowding out effect (Q59) and the Multidimensional Poverty Index (Q65)

Take Q55 as the model. The digital rupee is a liability of the Reserve Bank, which means the RBI owes you that money directly, the way it does for a currency note. A UPI payment moves money between bank accounts, so your bank owes you that balance. Once that one idea is clear, the option saying the liability lies with users and their banks in both cases falls away on its own.

That’s the pattern across the section: one mechanism, understood properly, answers the question.

Current Affairs and International Relations

Nineteen questions came from world affairs, security and events, and most of them tested how institutions work rather than who said what at a summit.

• International bodies: INTERPOL notices (Q41), FAO’s Blue Transformation (Q28), conventions India hasn’t ratified (Q89, later dropped), the Colombo Process and related forums (Q94), UN agencies with two Nobel Prizes (Q95), UN peacekeeping missions (Q96), BIMSTEC centers (Q97) and EU membership (Q100)
• India’s partners and neighbors: the German Chancellor’s January 2026 visit (Q43), river bridges with neighboring countries (Q86), the AI Impact Summit 2026 (Q90), India-ASEAN connectivity projects (Q91) and India-supported projects abroad (Q92)
• Defense and security: Mission Sudarshan Chakra (Q85), defense hardware made in India (Q93) and Army corps headquarters (Q98)
• Awards and events: the 2025 Nobel Prize in Physics (Q46), Grand Slam tennis rules (Q47) and the film Boong at the BAFTAs (Q50)

Copy that pattern into your notes. UPSC asked what a body does, where it sits and whether its decisions bind anyone, far more often than it asked about a single announcement.

Science and Technology Asked How Things Work

All 15 S&T questions were about specific technologies or national missions, and ten of them came as one continuous run from Q66 to Q75.

• Computing and AI: the DHRUV64 microprocessor (Q44), blockchain (Q51) and large language models (Q67)
• Defense technology: the BIS bomb-disposal standard (Q45), stealth (Q68) and drone swarms (Q72)
• Health and biology: genetic medicine (Q66) and GenomeIndia (Q73)
• Missions: the Bharat Forecast System (Q49), private space firms and IN-SPACe (Q71), the National Quantum Mission (Q74) and the Deep Ocean Mission (Q75)
• Energy and materials: rare earth elements (Q60), aircraft black boxes (Q69) and green hydrogen (Q70)

If you’ve used a chatbot, you already knew one statement in Q67 was wrong: large language models do not produce unbiased outputs, because they learn from human text and carry its bias. The other two statements, about predicting the next word by probability and training to minimize error, describe exactly how they work. That is what 2026 S&T looked like, ordinary understanding of a technology you’ve met in the news.

Our PYQ bank, which files some defense and energy questions under S&T as well, counts 20 S&T questions for 2026, the highest in the 14 papers it covers since 2013.

Polity, Geography and Environment

Polity had nine questions, and they were close readings of the Constitution and parliamentary practice rather than article-number recall. Our PYQ bank counts 11 polity questions for 2026, against its average of 14.7 a year from 2020 to 2026.

• the meaning of law under Article 13, framed as a seminar argument (Q79)
• articles on the Constitution’s name, repeals and commencement (Q80)
• disability rights, the Sugamya Bharat Abhiyan and NDFDC (Q81)
• Fifth and Sixth Schedule areas, tribal tax exemptions and reservation for women in Panchayats (Q82)
• starred and unstarred questions (Q83) and the Committee on the Welfare of SCs and STs (Q84)
• Zero FIR under the BNSS (Q87) and the CEIB, SFIO and CBI (Q88)
• the Revamped Rashtriya Gram Swaraj Abhiyan (Q99)

Q80 is the one to study. It gave three statements, each claiming there is no Article in the Constitution for something: the Constitution’s official name, the repeal of the Indian Independence Act, 1947 and the Government of India Act, 1935, and 26 January 1950 as the commencement date. Most people who haven’t read the last few articles mark at least one of these as true. All three are false. Article 393 gives the name, Article 395 does the repealing and Article 394 fixes the commencement. The answer is that there is no correct statement.

Geography had seven questions, and most needed a map in your head:

• Tungurahua volcano in Ecuador (Q21) and Lake Turkana (Q29)
• the climate of the Andaman and Nicobar Islands (Q23) and the Peninsular Block (Q24)
• identifying the Sutlej from four clues (Q35)
• which State borders the most other States (Q36)
• the countries whose ships must cross the Strait of Hormuz (Q40)

The clue-based river question rewards the same drainage logic our Indus antecedent drainage note walks through. Our PYQ bank recorded 20 geography questions in 2024 and 8 in 2026, which shows how far one subject can swing between years.

Environment had eight questions on our count, several of them about reasoning rather than species facts:

• Madhav National Park (Q22) and the foxtail orchid (Q26)
• the Khasi Hills REDD+ project (Q30) and India’s climate reporting (Q31)
• Western Hoolock Gibbons (Q32), mangroves as bio-shields (Q33) and Amur falcons at Doyang Lake (Q37)
• the NIRANTAR platform of the environment ministry (Q42)

On the PYQ bank’s broader environment tag, 2026 had 13 questions, below its 2013 to 2019 average of 19.0 and its 2020 to 2026 average of 16.0. The environment PYQ page has the full series.

The three ethics and governance case studies (Q76 to Q78) read like GS Paper IV: a vaccine contract compromised for profit, a waste plant planned near a tribal hamlet, and a confidential but unproven tip about a contractor. They rewarded the same instincts Mains ethics does, which are accountability, hearing the affected community first and following due process before disclosure.

How the Questions Were Framed

Sixty-nine of the 100 questions asked you to judge several statements before choosing an option, eight more were pairs or list-matching, and only 19 were plain one-answer questions.

None used the classic Statement-I and Statement-II format. Eight questions (Q5, Q15, Q36, Q43, Q48, Q55, Q89 and Q98) asked for what is not correct, not matched, not included or not ratified, so a quick read of the stem cost marks on its own.

The newest format is the relationship question, and Q25 is the clearest example. It gave three statements about the Sagarmala Programme and asked which links among them hold: does statement II validate statement I, does statement III extend it, and does statement I contradict statement III? Most aspirants mark each statement true or false and stop there. That’s only half the job. Here all three statements are broadly accurate, and the question turns entirely on the links: II gives evidence for I, III builds on I, and nothing in I contradicts III. The answer is 1 and 2.

For a relationship question, first mark each statement true or false on its own. Then test each claimed link separately: does one statement give evidence for, extend, explain or contradict the other? A link can fail even when both statements are true.

That last sentence is where these questions take marks.

The count-based conclusions (Q80, Q82, Q83 and Q84) are harsher in a different way. Options like "there are two correct statements, that include statement 2" can’t be eliminated with partial knowledge, because you can only rule one out once you’ve judged every statement. Every GS question is solved step by step on ourGS Paper I solutions page.

CSAT 2026: Section-Wise Breakdown

By our count, CSAT 2026 had 35 quantitative questions, 23 comprehension questions from 11 passages, 15 reasoning questions, six on communication and interpersonal skills, and one data interpretation question.

Each question carries 2.5 marks, the paper is out of 200 and you need 66 to qualify. The exam notice uses CSAT only as a gate: the Mains list is drawn from GS Paper I marks among candidates who clear 33% in Paper II.

The 11 passages covered a wide spread:

• HMPV compared with SARS-CoV-2, and AI tools in farming
• juvenile justice law, and the fuels behind air pollution, including Delhi’s switch to CNG
• AI in customer service, and a fiction extract featuring Hori and the landlord Rai Sahib
• Hugh Grant dozing at Wimbledon, and the economic convergence theory
• Kalagram at the Maha Kumbh, sport and life skills, and deflating input and output prices

The six communication questions were practical:

• communication styles between roles such as a judge and lawyers (Q52)
• what memorandums, flyers, Bcc and minutes are for (Q53)
• resolving conflict in a culturally diverse office (Q54)
• types of barriers to communication (Q55)
• designing a questionnaire for a report (Q56)
• circular letters (Q57)

They map to the syllabus item on interpersonal skills including communication skills, and together they’re worth 15 marks, enough to decide a borderline CSAT score.

Q61 to Q65 were five data sufficiency questions in a row, each asking whether two given statements are enough to answer a number question. In our faculty’s assessment, quant was the harder half of the paper: many questions were short to read but needed one clean idea, like the unit digit of 6¹²⁹ × 7³⁰⁷ (Q22) or the divisibility-by-11 test (Q40), rather than long calculation. The CSAT quantitative aptitude guide covers those number ideas, and every question is worked on our CSAT 2026 solutions page.

What the Provisional Answer Key Changed

UPSC’s provisional key dropped one GS question and none in CSAT, so GS Paper I was scored on 99 questions.

• The dropped question is Q89 in Series D (Q64 in Series A, Q54 in Series B, Q79 in Series C). It asked which international conventions India has not ratified.
• UPSC’s key states that 99 questions are taken for scoring against a maximum of 200 marks.
• Our first-day Series D key differed from UPSC’s provisional key on 8 GS questions and 5 CSAT questions. Score yourself on UPSC’s key, not on any coaching key, ours included.
• UPSC will release the final answer key only after the final result, in line with its existing practice.

All four series tables are on our provisional answer key page, and the Prelims marks calculator handles the negative marking for you.

Result and Cut-Off: What Is Official

The result is out and the cut-off isn’t. This is what UPSC has published:

• The result press note is dated 15 June 2026, and PIB carried it on 16 June.
• 13,343 candidates qualified for Mains against 1,016 notified vacancies. For CSE 2025 the figures were 14,161 against 1,087.
• 13,343 against 1,016 is about 13 candidates per vacancy, at the top of the twelve to thirteen times range the exam notice sets.
• The February notice expected about 933 vacancies. The result press note uses 1,016.
• Marks, cut-off marks and answer keys for Prelims 2026 will be uploaded only after the entire CSE 2026 and IFoS 2026 process is over.
• For reference, UPSC’s official CSE 2025 Prelims cut-off for the General category was 92.66, based on GS Paper I only.

We aren’t publishing a 2026 cut-off forecast here. A forecast needs the paper’s difficulty, the attempt pattern of lakhs of candidates and the vacancy count, and only the last of those is known. Past official cut-offs are on our UPSC cut-off page.

What This Means for Prelims 2027

Read as a whole, this UPSC Prelims 2026 analysis points to one habit more than any one subject: reading enough about a topic to judge statements about it, including statements about how facts connect. These are the shifts we would make in a 2027 plan.

Read ancient history and culture as sources. Sixteen questions came from here. NCERT’s Class XI An Introduction to Indian Art is the one book to read cover to cover, because the Buddhist symbols, stupas, temple styles and murals asked this year all sit inside it.

Keep a finance and digital economy file. Eleven questions were on payments, markets and financial products. For each product, write down who issues it, who owes the money and which regulator oversees it.

Learn S&T by mechanism. For every mission or technology in the news, note what it does, who runs it and one limit it has. That single page answers most statement questions.

Practice the new formats on purpose. Relationship and count-based questions made up 14 of the 100. Solve them untimed first and write down why each link holds or fails.

Give CSAT a weekly slot from the start. Thirty-five quant questions, five of them data sufficiency, and a six-question communication block are too much to leave for the last month. Our CSAT paper guide sets out the syllabus and pattern.

The Limits

This UPSC Prelims 2026 analysis describes one paper. It can’t forecast the next one, and it can’t tell you how you did.

• Subject counts depend on how the 20 or so border questions are filed. Treat each count as a range of a few questions either way.
• One paper is one sample. In our PYQ bank, polity has ranged from 5 to 22 questions a year since 2013, and geography from 4 to 20.
• Difficulty judgments here are our faculty’s assessment, not data. We have not put numbers on them.
• The provisional key can still change. UPSC’s final key, released after the final result, is the one that decides.

Mistakes That Quietly Cost Marks

Turning a subject count into a timetable is the most common one. A year when economy gets 18 questions does not mean economy deserves 18% of your hours next year, because the counts swing by more than that from paper to paper.

Studying only what rose this year is its twin. Geography fell from 20 to 8 in our bank between 2024 and 2026, and anyone who had dropped it after 2023 would have been caught out in 2024.

Scoring yourself on a coaching key feels faster, but first-day keys, ours included, differed from UPSC’s on several questions. A score built on the wrong key leads to the wrong decision about Mains preparation.

Reading the stem only once costs marks nobody notices losing. Eight questions this year asked for the incorrect option, and a fast reader answers the opposite question.

Treating CSAT as a formality is the expensive one. The paper is qualifying, but failing it makes a strong GS score worthless, and the 2026 quant section gave no one a free pass.

Final Remarks

If you’re preparing for 2027, the idea to keep from this UPSC Prelims 2026 analysis is that UPSC now tests whether you can judge claims about a topic, and the subject counts matter less than that habit. The full question-by-question solutions for both papers are the best place to practice it on real questions. We hope this gives your 2027 plan a firmer footing.

Frequently Asked Questions

Practice Questions

Prelims MCQs

1. Consider the following statements:
   I. The Trade Receivables Discounting System (TReDS) lets MSMEs sell their invoices to financiers through competitive bidding on an online platform.
   II. Delayed payment by large buyers is a major working-capital problem for MSMEs.
   III. TReDS platforms lend directly to MSMEs against collateral.
   Which of the following relationships among the above statements is/are correct?
   1. Statement II explains the need for the arrangement described in statement I.
   2. Statement III is consistent with statement I.
   (a) 1 only (b) 2 only (c) Both 1 and 2 (d) Neither 1 nor 2
   Answer: (a) Delayed payments are the reason TReDS exists, but TReDS discounts invoices without collateral, so statement III is false and contradicts statement I.
2. Consider the following pairs of symbols in early Buddhist art and the events they represent:
   1. Horse without a rider : The Great Departure
   2. Wheel (Dharmachakra) : The First Sermon
   3. Stupa : The Mahaparinirvana
   4. Bodhi tree : The Enlightenment
   How many of the pairs given above are correctly matched?
   (a) Only one (b) Only two (c) Only three (d) All four
   Answer: (d) All four symbols carry these meanings in the aniconic art of Bharhut and Sanchi.
3. Consider the following statements about the Constitution of India:
   1. Article 394A provides for an authoritative text of the Constitution in the Hindi language.
   2. The Fifth Schedule deals with the administration of tribal areas in Assam, Meghalaya, Tripura and Mizoram.
   3. Article 13 defines law to include custom or usage having the force of law.
   Which one of the following conclusions is correct?
   (a) All three statements are correct. (b) There are two correct statements, that include statement 1. (c) There is only one correct statement. (d) There is no correct statement.
   Answer: (b) Statements 1 and 3 are correct; the tribal areas of these four States are covered by the Sixth Schedule, not the Fifth.
4. With reference to RISC-V, consider the following statements:
   1. It is an open instruction set architecture that can be used without paying licence fees.
   2. India’s Digital India RISC-V (DIR-V) Programme promotes microprocessors based on it.
   3. It is a proprietary architecture owned by a single semiconductor company.
   Which of the statements given above are correct?
   (a) 1 and 2 only (b) 2 and 3 only (c) 1 and 3 only (d) 1, 2 and 3
   Answer: (a) RISC-V is an open standard, which is why India chose it for DIR-V; statement 3 describes a closed architecture.
5. Identify the river on the basis of the following information:
   1. It rises in the Tibetan region near Lake Mansarovar.
   2. It is an antecedent river that cuts a deep gorge through the Himalaya.
   3. It enters India through Arunachal Pradesh.
   4. Majuli, one of the largest river islands in the world, lies in it.
   (a) Indus (b) Sutlej (c) Brahmaputra (d) Teesta
   Answer: (c) Only the Brahmaputra, known as the Siang where it enters Arunachal Pradesh, fits all four clues.

Mains Practice Questions

1. Digital public infrastructure such as UPI and ONDC is changing how small businesses sell and get paid. Examine the opportunities and risks this creates for MSMEs. (15 marks, 250 words)
2. Early Buddhist art represented the Buddha through symbols rather than in human form. Discuss with examples from Bharhut, Sanchi and Amaravati. (10 marks, 150 words)
3. Critical minerals have moved from a trade question to a strategic one. Discuss India’s approach under the National Critical Mineral Mission. (15 marks, 250 words)
4. A civil servant receives credible but unproven information about a shortlisted contractor’s past conduct. How should transparency be balanced against due process in such a case? (10 marks, 150 words)
5. India’s connectivity projects with ASEAN, such as the Kaladan Multi-Modal Transit Transport Project and the India-Myanmar-Thailand Trilateral Highway, have moved slower than planned. Examine the reasons and their implications for the Act East Policy. (15 marks, 250 words)

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