UPSC IFoS Mains 2026 from November 22: DAF, 80 Vacancies, Eligibility and Preparation Roadmap
Last Updated: Jun 6, 2026

The UPSC IFoS Mains stage is now the immediate focus for forestry aspirants. The Union Public Service Commission has scheduled the Indian Forest Service (Main) Examination to begin on 22 November 2026. Candidates who cleared the Civil Services (Preliminary) Examination held on 24 May 2026 for the forest service stream must now complete the Detailed Application Form and start structured Mains revision without delay.
This guide explains the UPSC IFoS Mains vacancy position, eligibility, the DAF process, the written exam pattern and a practical preparation roadmap for the months ahead.
UPSC IFoS Mains 2026: vacancies and key dates
The Commission released the IFoS notification on 4 February 2026 with 80 vacancies. The preliminary screening was conducted through the Civil Services (Preliminary) Examination, and the qualified candidates have now moved into the Mains stage.
- Notification released: 4 February 2026
- Preliminary screening: 24 May 2026 (through CS Prelims)
- Total vacancies: 80
- Mains examination begins: 22 November 2026
For the wider civil services timeline, you can also review our complete UPSC exam calendar and the recent UPSC CSE prelims result update.
Eligibility in brief
An applicant must hold a Bachelor’s degree with at least one subject among Animal Husbandry and Veterinary Science, Botany, Chemistry, Geology, Mathematics, Physics, Statistics, Zoology, or a degree in Agriculture, Forestry or Engineering. The age limit is 21 to 32 years as on 1 August 2026, with relaxation for reserved categories. These conditions mirror the standards followed at the country’s leading civil services institutes, which is why focused mentoring from the best IAS coaching in Delhi helps candidates plan early.
The DAF process you must complete now
Qualified candidates have to fill the Detailed Application Form on the UPSC portal. The DAF captures personal details, educational record, employment history and the two optional subjects for the Mains. Upload scanned certificates carefully, because mismatches can lead to candidature problems later.
Always verify the latest instructions on the official portal at upsc.gov.in before final submission. Keep a printed copy of the completed form for your records.
UPSC IFoS Mains exam pattern
The written examination carries 1400 marks across six papers, and every paper is answered in English.
- Paper 1: General English, 300 marks
- Paper 2: General Knowledge, 300 marks
- Papers 3 to 6: two optional subjects, two papers each, 200 marks per paper
Each paper runs for three hours. Candidates choose two optional subjects from a defined list that includes Forestry, Zoology, Botany, Chemistry, Statistics, Mathematics, Physics, Geology and several engineering and agriculture options. The personality test follows the written stage.
How to choose your two optionals
Pick subjects that match your graduation background and have reliable study material. Many forest service toppers pair Forestry with Zoology or Botany because the content overlaps and revision becomes faster. Solve previous year papers to test your comfort before locking the choice.
A focused preparation roadmap
You have a clear runway until late November. Divide it into three phases.
- June to August: finish the static syllabus of both optionals and revise General Knowledge basics.
- September to October: shift to daily answer writing, diagrams and mock tests for each paper.
- November: revise high yield topics, refine presentation and practise time management.
Strengthen current affairs on environment, biodiversity, climate policy and wildlife law, since these themes appear in General Knowledge and in the interview. Standard reference titles for forestry and biology optionals are available through stores such as recommended IFoS optional books, which helps you build a steady reading list. Aspirants who prefer guided mentoring can also explore programmes listed by expert UPSC and IFoS mentors.
Conclusion
The UPSC IFoS Mains rewards candidates who plan early, write daily and revise smartly. Complete the DAF accurately, lock optionals that suit your strengths, and follow a disciplined three phase schedule until the November exam. For more on last year’s outcome, read our coverage of the previous IFoS final result. Consistent effort from now will decide your place in the merit list.
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