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    UPSC CSE Mock Test Free 2026 — IAS Prelims & Mains Pattern, Syllabus & Practice

    May 7, 202612 min read

    The Union Public Service Commission Civil Services Examination (UPSC CSE) is the most prestigious recruitment exam in India. Conducted annually by UPSC, it selects officers for the Indian Administrative Service (IAS), Indian Foreign Service (IFS), Indian Police Service (IPS) and 21+ other Group A and Group B central services.

    Each year roughly 10–11 lakh aspirants register for UPSC CSE Prelims, of whom only about 1,000 finally make it to the Mains-Interview stage and the final list — making CSE one of the toughest exams in the world by selection ratio.

    The exam has three stages: Preliminary (objective), Mains (descriptive, 9 papers), and Personality Test / Interview. Only Prelims marks are used as a screening cut-off; Mains + Interview marks decide the final ranking.

    Top services recruited through UPSC CSE include:

    • IAS — Indian Administrative Service
    • IFS — Indian Foreign Service
    • IPS — Indian Police Service
    • IRS (IT & C&CE) — Indian Revenue Service
    • IAAS — Indian Audit & Accounts Service
    • IRTS / IRPS / IRAS — Indian Railway Services
    • IIS / IDAS / IPoS and other Group A central services

    संक्षिप्त परिचय

    यूपीएससी सिविल सेवा परीक्षा (UPSC CSE) भारत की सबसे प्रतिष्ठित परीक्षा है, जो IAS, IPS, IFS और 21+ अन्य केंद्रीय सेवाओं के अधिकारियों का चयन करती है।

    परीक्षा तीन चरणों में होती है — Prelims (वस्तुनिष्ठ), Mains (9 पेपर वर्णनात्मक), और Interview। केवल Mains + Interview अंक अंतिम मेरिट तय करते हैं।

    न्यूनतम योग्यता स्नातक है। आयु सीमा: सामान्य वर्ग 21–32 वर्ष (आरक्षित वर्गों को छूट)। प्रयासों की संख्या: सामान्य वर्ग को 6, OBC को 9, SC/ST को असीमित (आयु सीमा तक)।

    Exam Pattern

    UPSC CSE 2026 has three stages. Prelims is the screening test (objective) and consists of two papers — General Studies Paper I (counted for cut-off) and CSAT (qualifying, 33% required). Mains is a descriptive exam with 9 papers, and the Interview carries 275 marks.

    Subject / SectionQuestionsMarks / Time
    Prelims — GS Paper I100200 marks · 2 hrs · counted for cut-off
    Prelims — CSAT (Paper II)80200 marks · 2 hrs · qualifying (33%)
    Mains — Essay2 essays250 marks · 3 hrs
    Mains — GS I, II, III, IV20 each250 marks each · 3 hrs each
    Mains — Optional Paper I & IISubject-based250 marks each · 3 hrs each
    Mains — Language Papers (Qualifying)English + Indian Language300 marks each · 3 hrs · 25% qualifying
    Personality Test (Interview)275 marks
    Total (Final Merit)2025 marks (Mains 1750 + Interview 275)

    Negative marking in Prelims: 1/3rd of the marks allotted to the question are deducted for every wrong answer. CSAT is qualifying — you must score at least 66/200 (33%) to be evaluated for the GS Paper I cut-off.

    Syllabus — Topic-wise Breakdown

    Prelims GS Paper I

    History of India and Indian National Movement; Indian and World Geography (Physical, Social, Economic); Indian Polity and Governance (Constitution, Political System, Panchayati Raj, Public Policy, Rights Issues); Economic and Social Development (Sustainable Development, Poverty, Inclusion, Demographics, Social Sector Initiatives); Environmental Ecology, Biodiversity, Climate Change; General Science; and Current Events of national and international importance.

    Prelims CSAT (Paper II)

    Comprehension (English passages); Interpersonal skills including communication; Logical Reasoning and Analytical Ability; Decision-Making and Problem-Solving; General Mental Ability; Basic Numeracy (numbers, magnitudes, etc. — Class X level); Data Interpretation (charts, graphs, tables — Class X level).

    Mains GS Paper I

    Indian Heritage and Culture; History and Geography of the World and Society. Includes Modern Indian History (mid-18th century onwards), Post-Independence Consolidation, World History (Industrial Revolution, World Wars, Decolonisation), Indian Society, Salient Features of World Physical Geography, Distribution of Key Natural Resources, Geographical Features and their Location.

    Mains GS Paper II

    Governance, Constitution, Polity, Social Justice and International Relations. Indian Constitution (historical underpinnings, evolution, features, amendments, significant provisions and basic structure), functions of executive and judiciary, Parliament and State legislatures, RPA, separation of powers, dispute redressal mechanisms, Government policies, welfare schemes, India and its neighbourhood, bilateral / regional / global groupings.

    Mains GS Paper III

    Technology, Economic Development, Bio-diversity, Environment, Security and Disaster Management. Indian Economy (planning, mobilisation of resources, growth, development, employment); Inclusive growth; Government Budgeting; Agriculture; Food security; Land reforms; Major crops; e-technology; PDS; Investment models; Science & Technology — developments and applications; Conservation, environmental pollution and degradation; Disaster management; Internal security; Money laundering.

    Mains GS Paper IV — Ethics, Integrity & Aptitude

    Ethics and Human Interface; Attitude; Aptitude and foundational values for Civil Services (integrity, impartiality, dedication to public service); Emotional intelligence; Contributions of moral thinkers and philosophers from India and the world; Public/Civil Service values; Probity in Governance; Case Studies on the above issues.

    Optional Subject (Choose One)

    UPSC offers 25+ optional subjects including Public Administration, Sociology, Geography, History, Political Science, Anthropology, Psychology, Economics, Philosophy, Mathematics, Physics, Literature in English/Hindi/Tamil/Bengali/etc. Each optional has two papers (Paper I + Paper II), 250 marks each.

    Eligibility & Pay Scale

    Post / StreamPay Level / StipendQualification
    IAS — Indian Administrative ServiceLevel 10 (₹56,100)Graduation
    IFS — Indian Foreign ServiceLevel 10 (₹56,100)Graduation
    IPS — Indian Police ServiceLevel 10 (₹56,100)Graduation
    IRS (IT) / IRS (C&CE)Level 10 (₹56,100)Graduation
    IAAS — Indian Audit & Accounts ServiceLevel 10 (₹56,100)Graduation
    Indian Railway Services (IRTS / IRPS / IRAS)Level 10 (₹56,100)Graduation
    Indian Information Service (Group A)Level 10 (₹56,100)Graduation

    Preparation Tips & Strategy

    1. Build a Strong NCERT Foundation First

    Read NCERTs (Classes 6–12) for History, Geography, Polity, Economics and Science. NCERTs give you the conceptual base and a large fraction of Prelims questions are direct or applied versions of NCERT content. Aim to finish all relevant NCERTs in the first 60 days of preparation.

    2. Use One Standard Source Per Subject

    For Polity — Laxmikanth. For Modern History — Spectrum / Bipan Chandra. For Geography — G.C. Leong + NCERT. For Economy — Ramesh Singh / Sanjeev Verma. Don't change books mid-preparation; revise the same standard source 4–5 times.

    3. Read One Newspaper Daily — The Hindu or Indian Express

    Spend 60–90 minutes daily on a quality newspaper. Make short notes under GS subject heads (Polity, Economy, IR, Environment, S&T). Current affairs span the last 12–18 months for Prelims and the last 18–24 months for Mains. Use a monthly compilation (Vision/InsightsIAS) to revise.

    4. Solve 10 Years of Previous Year Papers (PYQs)

    PYQs reveal UPSC's pattern, the depth needed and recurring themes. Solve Prelims PYQs subject-wise; for Mains, attempt model answers within the 7-minute-per-question timeline. Around 30–35% of every Prelims paper is conceptually rooted in PYQ themes.

    5. Take Full-Length Mock Tests in the Final 90 Days

    Attempt at least 25 full-length Prelims mocks in the last three months — under timed conditions. After each mock: 30 minutes attempt + 90 minutes analysis. Track accuracy by subject, attempt range and confidence-vs-correctness ratio.

    6. For Mains — Answer Writing Practice From Day One

    Mains is an answer-writing exam. Start with 1 question/day from the second month. Build up to 4–5 GS questions/day in the last 60 days. Get answers reviewed by mentors / peer groups. Stick to word/space limits — 150-word answers in 6 mins, 250-word answers in 10 mins.

    Study Plan

    Months 1–6: Foundation

    Read all NCERTs (6–12). Cover one standard source per GS subject. Start daily newspaper reading and current affairs notes. Decide your optional and start one paper. Solve 10 years of Prelims PYQs subject-wise.

    Months 7–10: Mains-Oriented Preparation

    Cover GS-II, III, IV in depth (heavy on Mains). Complete optional Paper I and II. Start Mains answer writing — 2 questions/day. Continue current affairs. Attempt 1 sectional Prelims test per week.

    Months 11–13: Prelims Sprint

    Pause Mains writing. Revise GS Paper I content × 3. Solve 25+ full-length Prelims mock tests. Revise 2 years of monthly current affairs. Daily CSAT practice — 10 questions/day to keep speed.

    Months 14–17: Mains Push

    After Prelims, switch back to Mains. Daily 4–5 answer writing. Two full-length GS mock tests / week. Optional revision twice. Essay practice — 1 essay/week. Last 30 days: full revision + previous year Mains questions.

    Ready to Test Your Preparation?

    Free mock tests on ParikshaExamPrep — no signup, instant score, available in Hindi & English. Practice with the latest exam pattern.

    Frequently Asked Questions

    What is the UPSC CSE exam pattern 2026?

    UPSC CSE 2026 has three stages — Prelims (objective, screening), Mains (9 descriptive papers, 1750 marks), and Personality Test/Interview (275 marks). Prelims has two papers — GS Paper I (counted for cut-off) and CSAT (qualifying with 33% required). Final merit is calculated from Mains + Interview total of 2025 marks.

    What is the age limit for UPSC CSE?

    The general age limit is 21–32 years as on August 1 of the exam year. OBC candidates get 3 years relaxation (up to 35), SC/ST candidates get 5 years (up to 37), and PwBD candidates get 10 years relaxation. Defence personnel and J&K-domiciled candidates get further relaxations as per UPSC rules.

    How many attempts are allowed for UPSC CSE?

    General category candidates get 6 attempts, OBC candidates get 9 attempts, and SC/ST candidates have unlimited attempts (subject to upper age limit). PwBD candidates of general/OBC categories get 9 attempts. Appearing for Prelims counts as one attempt; not appearing or being absent does not.

    What is the qualifying mark in CSAT?

    CSAT (Paper II) is qualifying in nature — you need to score at least 33%, i.e., 66 marks out of 200. If you score below 33% in CSAT, your GS Paper I marks are not evaluated for the Prelims cut-off, even if you have scored very high in GS Paper I.

    Is there negative marking in UPSC Prelims?

    Yes. One-third (1/3) of the marks allotted to the question are deducted for every wrong answer in both GS Paper I and CSAT. There is no negative marking for unattempted questions. For multiple-correct-marked questions, even if one of the marked answers is correct, the answer is treated as wrong.

    Where can I take a free UPSC mock test online?

    You can take free UPSC CSE Prelims mock tests on ParikshaExamPrep — covering GS Paper I (History, Polity, Geography, Economy, Environment, Current Affairs) and CSAT. Tests are bilingual (Hindi & English), follow the latest UPSC pattern with negative marking, and provide instant detailed analysis.

    अक्सर पूछे जाने वाले प्रश्न (हिंदी में)

    UPSC CSE परीक्षा पैटर्न 2026 क्या है?

    UPSC CSE 2026 तीन चरणों में होती है — Prelims (वस्तुनिष्ठ, स्क्रीनिंग), Mains (9 वर्णनात्मक पेपर, 1750 अंक), और Interview (275 अंक)। Prelims में दो पेपर होते हैं — GS Paper I (कट-ऑफ के लिए) और CSAT (33% qualifying)।

    UPSC के लिए आयु सीमा क्या है?

    सामान्य वर्ग के लिए आयु सीमा 21–32 वर्ष है (परीक्षा वर्ष के 1 अगस्त को)। OBC को 3 वर्ष, SC/ST को 5 वर्ष, और PwBD को 10 वर्ष की छूट मिलती है।

    UPSC में कितने प्रयास मिलते हैं?

    सामान्य वर्ग को 6 प्रयास, OBC को 9 प्रयास, और SC/ST को असीमित प्रयास (आयु सीमा तक) मिलते हैं। केवल Prelims में बैठने पर ही प्रयास गिना जाता है।

    UPSC में नेगेटिव मार्किंग है क्या?

    हाँ। Prelims के दोनों पेपरों में हर गलत उत्तर पर 1/3 अंक की कटौती होती है। न दिए गए उत्तरों पर कोई कटौती नहीं होती।

    UPSC के लिए मुफ्त मॉक टेस्ट कहाँ दें?

    आप ParikshaExamPrep.com पर UPSC CSE Prelims के लिए मुफ्त मॉक टेस्ट दे सकते हैं — हिंदी और अंग्रेजी दोनों में, नवीनतम पैटर्न पर आधारित।

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