Indian Forest Service Syllabus has been released along with UPSC IFS Exam Notification 2025 on their official website at https://upsc.gov.in/. Candidate should prepare for UPSC IFS exam by familiarizing with UPSC IFS Syllabus 2025. The Indian Forest Service is a prestigious examination organized under the UPSC department to select candidates. This Indian Forest Service syllabus covers many subjects such as Geography, Current Events, History, Polity, and many others.
UPSC IFS Syllabus 2025
In this article, we will discuss the detailed syllabus for the Indian Forest Services (IFoS) exam, conducted by the UPSC. Understanding the syllabus is important to help you focus on top areas from which questions are likely to be framed in the examination.
A proper study of the syllabus is essential for building a solid preparation strategy for both stages of the upsc ifs exam: Prelims and Mains. By aligning your preparation with the syllabus, you can ensure a focused and efficient approach to your exam preparation.
| UPSC IFS Syllabus 2025: Overview |
| Name of the Organization |
Union Public Service Commission (UPSC)
|
| Name of Exam |
UPSC Indian Forest Service
|
| Vacancy |
|
| Category |
Syllabus |
| Status |
Released |
| UPSC IFS Mains Exam date |
16th November 2025 |
| Selection Process |
Prelims, Mains, and Interview
|
| Language |
English |
| Official Websites |
https://upsc.gov.in/ |
UPSC IFoS Prelims Syllabus 2025
Here we have provided a detailed table highlighting the syllabus for the Indian Forest Service (IFoS) Preliminary Examination based on the notification released by UPSC in 2025:
Paper 1 (200 marks)
|
| Topic |
Details |
| Current Events |
National and International Importance |
| Geography |
Physical, Social, and Economic Geography of India and the World |
| Economic and Social Development |
Sustainable Development, Poverty, Inclusion, Demographics, Social Sector Initiatives |
| History of India and the Indian National Movement |
Important historical events and movements |
| Environmental Ecology, Biodiversity, and Climate Change |
General issues, not requiring subject specialization |
| Indian Polity and Governance |
Constitution, Political System, Panchayati Raj, Public Policy, Rights Issues |
| General Science |
Basic concepts of science |
Paper 2 (200 marks)
|
| Topic |
Details |
| Comprehension |
Testing understanding of passages |
| Logical Reasoning and Analytical Ability |
Problem-solving and reasoning skills |
| Decision Making and Problem Solving |
Practical application of knowledge |
| General Mental Ability |
Basic quantitative and logical abilities |
| Basic Numeracy and Data Interpretation |
Numbers and their relations, orders of magnitude, data interpretation using charts, graphs and tables |
UPSC IFS Mains Syllabus 2025
Aspirants who have successfully qualified for the prelims exam will be writing the mains exam on 16th November 2025, it is important to be thorough with the syllabus to clear the mains exam as the mains exam is designed to check your depth of knowledge and applicability below we have mentioned the syllabus for each paper 1 and II
Paper 1: General English
| Topic |
Details |
| Essay Writing |
Write an essay on a given topic in English. |
| Comprehension Writing |
Passages for comprehension, and summarizing content concisely. |
| Grammar and Usage |
Correct usage of grammar, vocabulary, and language skills. |
Paper 2: General Knowledge
| Topic |
Details |
| Current Events |
Knowledge of current events, and everyday observations. |
| History and Geography |
Knowledge of Indian history and geography. |
| Indian Polity and Constitution |
Understanding of the political system and Constitution of India. |
IFoS Optional Syllabus
After understanding the syllabus for UPSC prelims and mains it is also important to understand about the mains optional syllabus, as it carries 800 marks for 2 optional subjects covering papers III to VI, for papers III-VI please refer further below to the syllabus of the 11 optional subjects provided by the UPSC,
Agriculture
| Paper |
Topic |
| Paper 1 |
Agronomy |
| Soil Science |
| Plant Breeding & Genetic |
| Horticulture |
| Paper 2 |
Entomology |
| Plant Pathology |
| Agricultural Economics |
| Extension Education |
Forestry
| Paper |
Topic |
| Paper 1 |
Silviculture |
| Forest Soils & Watershed Management |
| Forest Management |
| Paper 2 |
Forest Mensuration & Management |
| Forest Ecology & Environment |
| Wood Science & Technology |
| Forest Economics |
Geology
| Paper |
Topic |
| Paper 1 |
General Geology |
| Geomorphology & Remote Sensing |
| Structural Geology |
| Paleontology |
| Paper 2 |
Mineralogy |
| Petrology |
| Economic Geology |
| Hydrogeology |
Animal Husbandry & Veterinary Science
| Paper |
Topic |
| Paper 1 |
Animal Nutrition |
| Animal Physiology |
| Animal Genetics & Breeding |
| Paper 2 |
Veterinary Medicine |
| Veterinary Surgery |
| Dairy Science |
| Livestock Management |
Botany
| Paper |
Topic |
| Paper 1 |
Cryptogams |
| Phanerogams |
| Plant Anatomy |
| Paper 2 |
Plant Physiology |
| Genetics |
| Ecology |
| Economic Botany |
Civil Engineering
| Paper |
Topic |
| Paper 1 |
Structural Engineering |
| Geotechnical Engineering |
| Hydraulic Engineering |
| Paper 2 |
Environmental Engineering |
| Transportation Engineering |
| Surveying |
| Construction Planning & Management |
Mechanical Engineering
| Paper |
Topic |
| Paper 1 |
Thermodynamics |
| Fluid Mechanics |
| Machine Design |
| Paper 2 |
Manufacturing Science |
| Industrial Engineering |
| Mechanics of Materials |
| Automobile Engineering |
Chemical Engineering
| Paper |
Topic |
| Paper 1 |
Chemical Process Calculations |
| Chemical Engineering Thermodynamics |
| Fluid Mechanics & Mechanical Operations |
| Paper 2 |
Chemical Reaction Engineering |
| Mass Transfer |
| Heat Transfer |
| Instrumentation & Process Control |
Physics
| Paper |
Topics |
| Paper 1 |
Classical Mechanics |
| Electromagnetism |
| Thermodynamics & Statistical Mechanics |
| Paper 2 |
Quantum Mechanics |
| Solid State Physics |
| Nuclear Physics |
| Electronics |
Statistics
| Paper |
Topic |
| Paper 1 |
Probability Theory |
| Statistical Inference |
| Linear Models & Regression Analysis |
| Paper 2 |
Sampling Theory |
| Stochastic Processes |
| Multivariate Analysis |
| Operations Research |
Zoology
| Paper |
Topic |
| Paper 1 |
Non-Chordata and Chordata |
| Cell Biology |
| Ecology |
| Genetics & Evolution |
| Paper 2 |
Physiology & Biochemistry |
| Developmental Biology |
| Applied Zoology |
IFoS Interview :
IFoS exam interview is conducted by UPSC for recruiting officers serving for the forests and protecting wildlife in the fields and candidates who have cleared prelims and mains reach the interview stage, there is no syllabus for Interview stage, it majorly depends on the DAF filled by the candidates as the members of board only have that information of yours with them, be thorough with the DAF and all detains related with you along with the recent environmental developments around the world.
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