Best OPSC OCS Syllabus 2025 – Prelims, Mains Syllabus

opsc ocs syllabus 2025

The OPSC OCS syllabus for 2025 consists of Paper 1 and Paper 2, as per the official notification from the Odisha Public Service Commission (OPSC). Paper 1 includes important subjects like current affairs, Indian history, public policy, the Indian Constitution, biology, and climate change. On the other hand, Paper 2 focuses on data interpretation, comprehension, decision-making, and basic arithmetic. The OPSC OCS Prelims Exam 2025 consists of two two-hour papers, and only those who clear this stage can appear for the Mains Examination.

The OPSC recruitment process includes various exams for different posts like ASO, Medical Officer, Forest Ranger, Lecturer, ACF, and OAS, with each having a distinct syllabus and pattern. To crack the OPSC OCS exam, candidates must thoroughly understand the exam pattern and syllabus before beginning their preparation. The written test plays a significant role in the selection process, and candidates must secure the minimum qualifying marks to proceed further. After successfully clearing all stages, candidates undergo document verification before the final selection and job posting.

For effective preparation, candidates can download the OPSC syllabus PDF 2025 from the official OPSC website. Having the detailed syllabus and exam pattern helps aspirants prepare efficiently and improve their chances of success. This article provides complete and accurate information on the OPSC OCS syllabus, exam pattern, and selection process, helping candidates plan their exam strategy and perform their best.

The Preliminary Examination consists of two papers, each carrying 200 marks. Both papers are objective-type (MCQs) with a duration of 2 hours each.

OPSC OCS Prelims Syllabus 2025

PaperSubjects Covered
General Studies Paper 1Current Affairs (National & International), Indian History, Geography, Indian Polity, Public Policy, Economic & Social Development, Environmental Ecology, General Science
General Studies Paper 2Comprehension, Logical Reasoning, Decision Making, Analytical Ability, General Mental Ability, Basic Numeracy (Class X level), English Language Comprehension (Class X level)

OPSC OCS Prelims Syllabus

General Studies Paper 1

This paper tests candidates’ knowledge in various subjects like history, polity, geography, and economy. The topics covered include:

  • Current Affairs (National & International) : The Current Affairs section covers important national and international events, government policies, and recent developments across various sectors.
  • Indian History & National Movement : Indian History & National Movement includes ancient, medieval, and modern history, with a focus on significant events, freedom struggles, and key personalities.
  • Indian & World Geography (Physical, Social & Economic Geography) : Indian & World Geography explores physical, social, and economic geography, including landforms, climate, natural resources, and population distribution.
  • Indian Polity & Governance (Constitution, Political System, Panchayati Raj, Rights Issues, etc.) : Indian Polity & Governance covers the Constitution, political system, Panchayati Raj, governance structures, and rights-related issues
  • Economic & Social Development (Sustainable Development, Poverty, Inclusion, Demographics, etc.) : Economic & Social Development focuses on sustainable development, poverty, inclusion, demographics, and key government initiatives for economic progress.
  • Environmental Ecology & Biodiversity : Environmental Ecology & Biodiversity includes topics on climate change, conservation, ecosystems, and environmental policies.
  • General Science : General Science covers fundamental concepts in physics, chemistry, and biology, along with their applications in daily life.

General Studies Paper 2 (CSAT – Qualifying Paper)

This paper is qualifying in nature and tests logical reasoning, analytical skills, and comprehension abilities. The topics include:

  • Comprehension & English Language Skills : The Comprehension & English Language Skills section tests the candidate’s ability to understand and interpret written passages, along with grammar, vocabulary, and sentence formation.
  • Interpersonal & Communication Skills : Interpersonal & Communication Skills assess verbal and non-verbal communication, active listening, and the ability to convey ideas effectively.
  • Logical Reasoning & Analytical Ability : Logical Reasoning & Analytical Ability evaluates problem-solving skills, pattern recognition, and logical deductions.
  • Decision-making & Problem-solving : Decision-making & Problem-solving focus on assessing candidates’ ability to analyze situations, think critically, and make effective decisions under pressure.
  • General Mental Ability : General Mental Ability covers numerical aptitude, reasoning skills, and cognitive thinking.
  • Basic Numeracy & Data Interpretation (Class X level) : Numeracy & Data Interpretation (Class X level) includes mathematical concepts like percentages, ratios, averages, graphs, and tables to analyze numerical data efficiently.

OPSC OCS Mains Syllabus 2025

SubjectTopics Covered
Odia LanguageComprehension, Vocabulary, Précis Writing, Short Essays, Translation (English to Odia & vice versa)
English LanguageComprehension, Vocabulary, Précis Writing, Short Essays
General Studies Paper IIndian Constitution, Polity, Legal & Environmental Issues, Modern Indian History, Geography, Current National Issues, Social Welfare Problems
General Studies Paper IIIndian Economy, International Affairs, Statistical Analysis, Science & Technology, Odisha Economy, Security Issues
General Studies Paper IIITechnology, Biodiversity, Environmental Issues, Economic Development, Disaster Management
General Studies Paper IVEthics, Integrity, Aptitude, Human Values, Emotional Intelligence, Governance Issuesc

The OPSC OCS Syllabus for the Mains exam is designed to assess candidates’ in-depth knowledge of various subjects, including language proficiency, general studies, and optional subjects. It covers key areas such as Odisha’s history, geography, polity, economy, ethics, and governance, along with science, technology, and environmental issues. A well-structured preparation strategy based on the OPSC OCS Syllabus will help aspirants excel in the exam.

English & Odia Language Papers

SubjectTopics Covered
English LanguageThe paper evaluates candidates on their ability to comprehend, use vocabulary effectively, write précises, compose short essays, and translate from Odia to English. – Comprehension of given passages – Usage and Vocabulary – Precis Writing – Short Essays – Translation from Odia to English
Odia LanguageThis paper assesses comprehension, usage, vocabulary, précis writing, short essays, and translation from English to Odia. – Comprehension of Given Passages – Usage and Vocabulary – Precis Writing – Short Essays – Translation from English to Odia and vice versa

OPSC OCS Mains General Studies I Syllabus

SubjectTopics Covered
Heritage & CultureIndian Culture: Covers salient aspects of art forms, literature, and architecture from ancient to modern times. – Temple Architecture of Odisha and its significance. – Socio-Cultural Development in Odisha over different historical periods. – Bhakti Movement in Odisha and its impact on society. – Evolution and Growth of Odia Language & Literature along with key developments. – Regional Traditions of Odisha Festivals and their cultural importance.
HistoryModern Indian History (from the mid-18th century to the present) covering significant events, personalities, and issues. – Freedom Struggle: Various phases and contributions from different parts of the country. – Post-Independence India: Consolidation and reorganization within the country. – Kalinga War: Its significance and long-term effects. – Dynastic History of Odisha: Major ruling dynasties such as Mahameghavahan Kharavela, The Bhauma Karas, The Somavamsis, The Gangas, and The Gajapatis. – Resistance Movements in Odisha: Paik Rebellion, Veer Surendra Sai, and the Revolt of 1857. – Creation of Odisha Province and its historical context. – Freedom Movement & Praja Mandal Movements in Odisha, highlighting the social bases of Odia nationalism and the integration of princely states. – Social Reform Movements in Odisha and their impact on society.
GeographyPhysical, Economic & Social Geography of India with a special focus on Odisha. – Geophysical Phenomena: Earthquakes, Tsunamis, Volcanic activity, Cyclones, and their impact. – Odisha’s Natural Resources: Water, forests, and minerals. – Odisha’s Physiography & Riverine System: Major rivers, landforms, and natural landscapes. – Diversity of India & Odisha: Social structure, communities, and traditions. – Women’s Role in Society: Status of women and contributions of women’s organizations. – Population Issues: Growth, urbanization, and associated challenges. – Effects of Globalization: Impact on Indian society and Odisha’s local economy. – Tribal Population & Urbanization: Growth and distribution of tribal communities, along with urban development in Odisha. – Social Issues: Social empowerment, communalism, regionalism, and secularism.

OPSC OCS Mains General Studies II Syllabus

SubjectTopics Covered
Governance, Constitution, Polity & Inter-State RelationsIndian Constitution: Historical background, evolution, key features, amendments, and basic structure. – Federalism & Devolution of Power: Union-state relations, fiscal decentralization, and challenges. – Separation of Powers: Role of different government organs and dispute resolution mechanisms. – Comparative Constitution: Indian system vs. other countries. – Parliament & State Legislatures: Functioning, conduct, privileges, and emerging issues. – Executive & Judiciary: Structure, organization, and roles of various ministries and government departments. – Representation of People’s Act, Odisha Right to Public Services Act & Odisha Lokayukta Act: Their significance and implications. – Appointments to Constitutional Bodies: Powers, functions, and responsibilities. – Statutory & Regulatory Bodies: Various quasi-judicial bodies and their impact on governance. – Transparency & Accountability: E-Governance, citizen charters, and institutional reforms. – Role of Civil Services in Democracy: The significance of civil services in governance. – Panchayati Raj Institutions (PRIs) in Odisha: Their role in local self-governance. – Odisha & Its Neighbourhood Relations: Regional cooperation and diplomatic engagement.
Social JusticeGovernment Policies for Development: Key interventions and their impact in India and Odisha. – Role of MSMEs & Women SHGs in economic development. – Welfare Schemes for Vulnerable Sections: Effectiveness of government programs for marginalized communities. – Institutions for Social Protection: Mechanisms for safeguarding vulnerable populations. – Development & Management of Social Sectors: Issues in health, education, and human resource development. – Poverty & Hunger: Strategies for achieving Sustainable Development Goals (SDGs).

OPSC OCS Mains General Studies III Syllabus (Science & Technology, Economic Development, Agriculture, Biodiversity & Environment, Security & Disaster Management)

SubjectTopics Covered
Science & Technology– Developments in science and technology and their applications in daily life.
– Achievements of Indians in science and technology, including the process of indigenization and the development of new technologies.
– Awareness in fields like IT, space, computers, robotics, nanotechnology, and biotechnology.
– Issues related to intellectual property rights (IPR) and their implications.
Economic DevelopmentIndian Economy: Issues related to planning, resource mobilization, economic growth, and employment.
Inclusive Growth: Challenges and policies related to achieving equitable economic development.
Government Budgeting: Budgetary policies and strategies of India and Odisha.
Land Reforms: Their role in economic development, with a special focus on Odisha.
Liberalization and Industrial Policy: The impact of liberalization on different industries and overall economic growth.
Infrastructure: Development of energy, transport (roads, railways, airports, and ports) in India and Odisha.
Industrialization in Odisha: Key industries, growth potential, and associated challenges.
AgricultureCropping Patterns: Major crops across different regions of India and Odisha.
Irrigation Systems: Various methods of irrigation, storage, and water management techniques.
Marketing of Agricultural Produce: Transportation, distribution challenges, and e-technology support for farmers.
Subsidies & Minimum Support Price (MSP): Direct and indirect farm subsidies, their impact, and the Public Distribution System (PDS).
Food Security & Buffer Stocks: Importance of buffer stocks and food security mechanisms.
Technology in Farming: Modern agricultural innovations and technology missions.
Animal Husbandry & Farmer’s Income: Strategies for doubling farmers’ income through livestock and dairy farming.
Food Processing Industries: Growth potential, significance, and supply chain management in India and Odisha.
Biodiversity & EnvironmentEnvironmental Conservation: Importance of biodiversity and strategies for conservation.
Environmental Pollution & Degradation: Causes, consequences, and mitigation measures.
Environmental Impact Assessment (EIA): Procedures for assessing the environmental consequences of policies and projects.
Disaster Management: Natural and man-made disasters in India and Odisha, response mechanisms, and policies.
Development & Extremism: The link between socio-economic issues and the spread of extremism.
Left-Wing Extremism in Odisha: Causes, impact, and countermeasures.
Security & Disaster ManagementInternal Security Threats: Role of communication networks, media, and social networking sites in security concerns.
Cyber Security & Money Laundering: Basic concepts, risks, and preventive measures.
Security Challenges & Organized Crime: Linkages between organized crime and terrorism.
Border Security: Issues related to border management and security threats.
Security Agencies: Structure and functions of various national and state-level security forces in India and Odisha.

OPSC OCS Mains General Studies IV Syllabus (Ethics, Integrity, and Aptitude)

SubjectTopics Covered
Ethics & Human InterfaceEssence & Importance of Ethics: Understanding ethical behavior and its consequences in personal and professional life.
Ethical Dimensions: Different aspects of ethics in governance and decision-making.
Ethics in Public & Private Life: How ethical principles apply to both professional and personal relationships.
Human Values: Lessons from great leaders, reformers, and administrators in ethical decision-making.
Role of Society & Institutions: How family, society, and education influence ethical behavior and values.
AttitudeAptitude & Foundational Values: Essential traits for civil service like integrity, impartiality, objectivity, and dedication to public service.
Empathy, Tolerance & Compassion: Importance of emotional intelligence and understanding diverse perspectives.
Emotional IntelligenceConcept & Application: Understanding emotions and their role in governance.
Administrative & Governance Use: How emotional intelligence helps in policymaking and administration.
Moral Thinkers & Philosophers– Contributions of Indian and international moral thinkers and their relevance in modern governance.
Public/Civil Service EthicsEthical Issues in Public Administration: Ethical dilemmas in government and private institutions.
Laws & Regulations as Ethical Guidance: Role of laws, rules, and conscience in governance.
Ethical Governance & Accountability: Strengthening ethical values in administration.
International Relations Ethics: Ethical concerns in diplomacy, foreign funding, and corporate governance.
Probity in GovernanceConcept of Public Service: Philosophical and practical aspects of ethical governance.
Transparency in Government: Right to Information (RTI), citizen charters, and quality of service delivery.
Work Culture & Utilization of Public Funds: Ethical considerations in resource allocation and corruption prevention.
Challenges of Corruption: Ways to improve ethical decision-making and reduce corruption.
Case Studies– Practical case studies on real-life ethical dilemmas in administration and governance.

OPSC OCS Optional Subjects List

Candidates can choose any of the subjects from the list of subjects given below for Optional Paper VI and VII of Mains Exam. 

  1. Agriculture Engineering
  2. Agriculture
  3. Animal Husbandry and Veterinary Science
  4. Anthropology
  5. Botany
  6. Chemistry
  7. Civil Engineering
  8. Commerce and Accountancy
  9. Economics
  10. Education
  11. Electrical Engineering
  12. Fishery Science
  13. Forestry
  14. Geography
  15. Geology
  16. History
  17. Home Science
  18. Law
  19. Management
  20. Mathematics
  21. Mechanical Engineering
  22. Medical Science
  23. Philosophy
  24. Physics
  25. Political Science and International Relations
  26. Psychology
  27. Public Administration
  28. Sociology
  29. Statistics
  30. Zoology
  31. Literature of any one of the following languages- English, Hindi, Odia, Persian, Sanskrit and Urdu


  1. What is the OPSC OCS Syllabus 2025 for Prelims?
    The OPSC OCS Prelims syllabus includes General Studies Paper 1 (History, Polity, Economy, Environment, Science, and Current Affairs) and General Studies Paper 2 (Comprehension, Logical Reasoning, Decision Making, and Basic Numeracy).
  2. What are the subjects covered in the OPSC OCS Mains Syllabus 2025?
    The OPSC OCS Mains syllabus covers Odia Language, English, General Studies (4 papers), and an optional subject chosen by the candidate.
  3. How many papers are there in OPSC OCS Mains 2025?
    The OPSC OCS Mains exam consists of 9 papers, including compulsory language papers, 4 General Studies papers, and 2 optional subject papers.
  4. What are the best books for OPSC OCS 2025 preparation?
    Some recommended books include NCERTs for History & Geography, Laxmikant for Polity, Ramesh Singh for Economy, and Odisha-specific books for state-related topics.
  5. Is there any negative marking in OPSC OCS Prelims?
    Yes, OPSC OCS Prelims has negative marking for incorrect answers in objective-type questions.
  6. What are the optional subjects in OPSC OCS Mains 2025?
    Candidates can choose from various optional subjects, including History, Geography, Political Science, Public Administration, and more.
  7. Where can I download the official OPSC OCS Syllabus 2025 PDF?
    The official OPSC OCS Syllabus 2025 PDF can be downloaded from the OPSC website (www.opsc.gov.in).
  8. How to prepare for OPSC OCS 2025 in 6 months?
    Focus on NCERTs, Odisha-specific books, newspapers for current affairs, and practice answer writing daily for better results.
  9. What is the exam pattern for OPSC OCS 2025?
    The exam has three stages: Prelims (Objective), Mains (Descriptive), and Interview (Personality Test).
  10. What is the minimum qualifying mark for OPSC OCS Mains?
    Candidates must secure minimum qualifying marks in language papers, and overall selection depends on merit ranking.

Conclusion

The OPSC OCS syllabus 2025 is comprehensive and requires dedicated preparation. Candidates should focus on conceptual clarity, analytical ability, and answer-writing skills to perform well in both Prelims and Mains. Understanding the exam pattern and syllabus is crucial for structured preparation. Aspirants are advised to download the official OPSC syllabus PDF from the OPSC website and stay updated with the latest notifications. By following a systematic study plan, candidates can ace the OPSC OCS exam and secure a prestigious position in Odisha’s civil services.

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