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Prepared by PhysicsWallah UPSC experts, this detailed guide on the UPSC Indian Forest Service (IFoS) Exam 2027 covers notification, eligibility, syllabus, exam pattern, vacancies, salary, preparation strategy, cut-off, PYQs, and latest updates.
Indian Forest Service (IFoS) Exam 2027 is conducted by the Union Public Service Commission (UPSC) to recruit Group A officers responsible for forest administration, wildlife conservation, biodiversity management, and environmental governance across India.
UPSC IFoS 2027 Notification is expected to be released along with the Civil Services Examination (CSE) Notification. Since the official notification for 2027 is yet to be announced, the information provided below is based on the UPSC IFoS 2026 Notification and will be updated after the release of the latest notification.
The Indian Forest Service (IFoS) is one of the three All India Services established under the All India Services Act, 1951.
| Particulars | Details |
| Exam Name | Indian Forest Service (IFoS) Examination 2027 |
| Conducting Authority | Union Public Service Commission (UPSC) |
| Service Type | All India Service (Group A) |
| Exam Level | National |
| Selection Process | Prelims, Mains, Interview & Medical Examination |
| Mode of Application | Online |
| Official Website | UPSC |
| Job Location | Across India |
The Union Public Service Commission (UPSC) will release the IFoS (Indian Forest Service) Notification 2027 on January 13, 2027. Candidates can submit their online applications on the UPSC Official Website until February 2, 2027.
The official schedule for the IFoS Exam 2027 will be announced through the UPSC notification.
| Event | Expected Date* |
| Online Application Starts | 13-01-2027 |
| Last Date to Apply | 02-02-2027 |
| Application Correction Window | To Be Announced |
| UPSC Prelims Exam | 23-05-2027 |
| IFoS Mains Exam | 21-11-2027 |
| Personality Test/Interview | To Be Announced |
| Final Result | To Be Announced |
*Expected dates will be updated after the release of the official UPSC IFoS 2027 Notification.
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The exact number of vacancies for the IFoS Exam 2027 will be notified by UPSC along with the official notification.
| Year | Vacancies* |
| 2026 | 80 |
| 2025 | 150 |
| 2024 | 150 |
| 2023 | 150 |
Candidates must fulfil all the eligibility conditions prescribed by UPSC to apply for the IFoS Examination.
Eligibility Parameter
Requirement
Nationality
Citizen of India (or as specified by UPSC)
Educational Qualification
Bachelor’s degree with prescribed science-related subjects
Age Limit
21-32
Number of Attempts
As per UPSC category-wise rules
Physical Standards
Mandatory
Medical Examination
Mandatory for final selection
The IFoS Age Limit 2027 will be notified by UPSC in the official notification. Based on previous notifications, candidates are generally required to be between 21 and 32 years of age as on the prescribed cut-off date.
UPSC provides upper age relaxation to candidates belonging to reserved categories in accordance with Government of India rules.
| Category | Age Relaxation |
| SC/ST | 5 Years |
| OBC | 3 Years |
| PwBD | Up to 10 Years (as applicable) |
| Ex-servicemen & Other Categories | As per Government Rules |
Candidates applying for the Indian Forest Service Examination must possess a Bachelor’s degree from a recognised university with at least one of the prescribed subjects.
Eligible subjects generally include:
Candidates must meet the physical and medical standards prescribed in Appendix-III of the Rules for the Indian Forest Service Examination, 2026 to be eligible for final selection.
The number of attempts for the IFoS Examination is aligned with the Civil Services Examination.
| Category | Maximum Attempts |
| General/EWS | 6 |
| OBC | 9 |
| SC/ST | Unlimited (up to the maximum age limit) |
| PwBD | As per UPSC rules |
The IFoS Selection Process consists of multiple stages designed to assess a candidate’s academic knowledge, analytical ability, personality, and physical fitness.
| Stage | Purpose |
| Preliminary Examination | Screening Test |
| Mains Examination | Written Examination |
| Personality Test | Assessment of suitability for the Service |
| Medical Examination | Physical and Medical Fitness |
| Final Merit List | Selection based on Mains and Interview marks |
The IFoS Examination consists of three stages: Preliminary Examination, Mains Examination, and Personality Test.
The Preliminary Examination is common for both the Civil Services Examination (CSE) and IFoS.
| Paper | Marks | Duration |
| General Studies Paper I | 200 | 2 Hours |
| CSAT (Paper II) | 200 (Qualifying) | 2 Hours |
The detailed UPSC IFoS Mains Exam Pattern 2027 is given below:
| Paper | Marks |
| General English | 300 |
| General Knowledge | 300 |
| Optional Subject Paper I | 200 |
| Optional Subject Paper II | 200 |
| Optional Subject Paper III | 200 |
| Optional Subject Paper IV | 200 |
| Total Written Marks | 1400 |
| Personality Test | 300 |
| Grand Total | 1700 |
The IFoS Syllabus 2027 includes topics from both the Preliminary and Mains Examinations.
The Preliminary syllabus covers:
The Mains Examination comprises:
Candidates must select two optional subjects, subject to the combination rules specified in the notification.
Some popular optional subjects include:
Not all optional subject combinations are permitted by UPSC. Candidates should carefully check the official notification before finalising their optional subjects.
Subjects such as Forestry, Agriculture, Geology, Botany, Zoology, and Mathematics are often preferred by aspirants due to their relevance and overlap.
The Indian Forest Service offers an attractive salary package along with numerous allowances, job security, and opportunities for career advancement.
| Component | Details |
| Pay Level | Level 10 |
| Basic Pay | ₹56,100 per month |
| Dearness Allowance (DA) | As per Government rules |
| House Rent Allowance (HRA) | Applicable |
| Travel Allowance (TA) | Applicable |
| Other Benefits | Medical facilities, Pension, Leave Travel Concession and more |
IFoS officers receive regular promotions based on seniority, performance, and service tenure. Senior positions include Divisional Forest Officer (DFO), Conservator of Forests, Chief Conservator of Forests, Additional Principal Chief Conservator of Forests, and Principal Chief Conservator of Forests.
The key responsibilities of an IFoS officer include
Candidates selected for the Indian Forest Service undergo comprehensive training to prepare them for professional responsibilities.
| Training Stage | Details |
| Foundation Course | Training in governance, administration, and ethics. |
| IGNFA Training | Professional forestry training at IGNFA, Dehradun. |
| Field Training | Practical exposure in forest management and wildlife conservation. |
The UPSC IFoS Admit Card 2027 will be released separately for the Preliminary Examination, Mains Examination, and Personality Test on the official UPSC website. It is mandatory to carry a printed copy of the admit card along with a valid photo ID to the examination centre.
UPSC generally releases the IFoS Prelims Answer Key after the entire recruitment process is completed. Since the Mains Examination is descriptive in nature, UPSC does not release an official answer key for the written papers.
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The UPSC IFoS Result 2027 will be announced in three stages—Prelims, Mains, and Final Result. Candidates qualifying each stage proceed to the next, while the final merit list is prepared based on Mains and Personality Test marks, subject to medical fitness.
The table below shows the category-wise cut-off marks secured by the last recommended candidate in the Indian Forest Service (IFoS) Examination 2025:
Download the year-wise Indian Forest Service (IFoS) Previous Year Cut Off PDFs from the link below:
Download the year-wise IFoS Previous Year Question Papers (Prelims and Mains) from the link below:
A well-structured preparation strategy is essential to succeed in the highly competitive IFoS Examination.
Candidates should rely on standard reference books along with authentic government reports and current affairs resources.
| Subject | Recommended Books |
| History | NCERTs, Spectrum Modern History |
| Polity | Indian Polity by M. Laxmikanth |
| Geography | NCERTs, G.C. Leong |
| Economy | NCERTs, standard Economy reference books |
| Environment | Shankar IAS Environment Book |
| Science & Technology | NCERTs and Current Affairs |
| Current Affairs | Newspapers, PIB, Government Reports |
| Optional Subjects | Standard books recommended for the chosen optional |
Although both services are recruited through UPSC, their nature of work and career paths differ significantly.
| Parameter | IFoS | IAS |
| Service | All India Service | All India Service |
| Primary Role | Forest & Wildlife Administration | General Administration |
| Cadre | Forest Cadre | State Cadre |
| Work Profile | Conservation, Forestry, Environment | Governance, Policy Implementation |
| Field Exposure | High | Moderate |
Many aspirants confuse the Indian Forest Service (IFoS) with the Indian Foreign Service (IFS). However, both services are entirely different.
| Parameter | IFoS | IFS (Foreign Service) |
| Full Form | Indian Forest Service | Indian Foreign Service |
| Primary Role | Forest & Wildlife Management | Diplomacy & Foreign Relations |
| Ministry | Ministry of Environment, Forest and Climate Change | Ministry of External Affairs |
| Posting | Across India | Indian Embassies & Missions Abroad |
| Nature of Work | Environmental Governance | International Relations |
The IFoS Exam 2027 offers a prestigious career in forest administration, wildlife conservation, and environmental governance. With the right preparation strategy, regular mock tests, PYQ practice, and PhysicsWallah’s expert guidance and study resources, aspirants can confidently prepare for every stage of the examination and maximise their chances of selection.
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The official IFoS Notification 2027 is expected to be released by UPSC on 13th January, 2027.
Candidates must possess a Bachelor's degree from a recognised university with at least one of the prescribed science, agriculture, forestry, engineering, or related subjects specified by UPSC.
Yes. The Civil Services Preliminary Examination serves as the screening test for both the Civil Services Examination and the Indian Forest Service Examination.
Candidates are required to choose two optional subjects, with two papers for each subject, subject to the combination rules prescribed by UPSC.
Yes. Candidates recommended after the Personality Test must qualify the prescribed physical and medical standards before final appointment.
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