UPSC IFS Study Material

UPSC IFS Study Material -Indian Forest Service -UPSC conducts annual examination for recruitment of candidates to The Indian Forest Service (IFS). The IFS Exam is a Civil Services Examination conducted for the recruitment of officers at the All India level by the Government of India. The Preliminary Exam is common with the CSE Prelim on the basis of which candidates qualify for the IFS Mains Examination.

UPSC IFS Eligibility


  • A candidate must be an Indian citizen
  • OR a Nepalese/Bhutanese subject
  • OR a Tibetan refugee who crossed over to India prior to 1st January 1962 with the intention of permanently settling in India,
  • OR A person of Indian origin who has migrated from Pakistan, Burma, Sri Lanka, Kenya, Uganda, the United Republic of Tanzania, Zambia, Malawi, Zaire, Ethiopia, and Vietnam to permanently settle in India

Candidate belonging to non-Indian citizen categories as stated above, should produce a GoI provided certificate of eligibility.

Educational Qualification

  • Candidate should hold a Bachelor’s degree with at least one of the subjects namely, Animal Husbandry & Veterinary Science, Botany, Chemistry, Geology, Mathematics, Physics, Statistics and Zoology from a Recognised University.
  • A Bachelor’s degree in Agriculture or Forestry or Engineering of a recognised university is also valid.
  • Candidates appearing in the final year of their degree course can also apply. You will need to provide proof of Passing the said degree exam at a later stage in the Selection Process.

Age Limit

  • Age of a candidate should be minimum 21 years and maximum 30 years on 1st July of the year of examination

Limit on Attempts

  • The maximum number of attempts depends on the category the candidate fall under. This is classified as follows:
  • General Candidates: 7 attempts
  • Scheduled Caste and Scheduled Tribe Candidates: No restriction
  • Other Backward Classes: 9 attempts
  • Physically handicapped- 9 attempts for general and OBC, while unlimited for SC/ST

UPSC IFS Exam Pattern


  • UPSC conducts a common Preliminary Exam for Civil Services Examinations.
  • The Prelim consists of 2 objective papers. Paper-I covers General Studies while Paper-II relates to Aptitude Test.
  • Paper-II is qualifying in nature, where candidate is required to score 33% of the marks to qualify.
  • Candidates who qualify the UPSC CSE Prelim cutoff for IFoS will be able to appear for the UPSC IFS Main.


  • Candidates who qualify Preliminary exam are called for the Mains exam, which is a series of written papers.
  • The IFS Mains consists of 6 papers of 300 marks each.
  • The General Knowledge and General English paper are common to all candidates however candidates must select 2 optional subjects of their choice.
  • Each optional subject will have 2 papers.
  • Each paper of the optional subject will comprise 8 descriptive type questions.
  • These will be split up into Section ‘A’ and Section ‘B’ – each consisting 4 questions each.
  • The candidates are however, required to answer only 5 questions from each optional paper.
—————- ———————————————————————– ————– ————————-
Paper Subject Marks Duration
Paper-1 General Knowledge 300 3 hours
Paper-2 General English 300 3 hours
Paper-3 Paper-1 of 1st Optional subject 200 3 hours
Paper-4 Paper-2 of 1st Optional subject 200 3 hours
Paper-5 Paper-1 of 2nd Optional Subject 200 3 hours
Paper-6 Paper-2 of 2nd Optional Subject 200 3 hours
—– Total Marks 1400 ——


Candidates are required to select 2 optional subjects from the list of 14 subjects for the IFS Mains Examination

  • Agriculture
  • Agricultural Engineering
  • Animal Husbandry & Veterinary Science
  • Botany
  • Chemistry
  • Chemical Engineering
  • Civil Engineering
  • Forestry
  • Geology
  • Mathematics
  • Mechanical
  • Engineering
  • Physics
  • Statistics
  • Zoology

The option to club the following optional subjects will not be permitted for the UPSC IFS Mains Exam:

  1. Agriculture and Agricultural Engineering
  2. Agriculture and Animal Husbandry & Veterinary Science
  3. Agriculture and Forestry
  4. Chemistry and Chemical Engineering
  5. Mathematics and Statistics
  6. Not more than one Engineering subject – Agricultural Engineering, Chemical Engineering, Civil Engineering and Mechanical Engineering cannot be combined with each other.

On the basis of marks secured in the Main exam, candidates will qualify for Interview, The combined marks of the Main exam and Interview are used to produce the final result.

UPSC IFS Study Material For All Subjects Pdf


Scroll to Top