IFoS Exams

About IFoS Exam

Candidates are required to apply Online using the link http://www.upsconline.nic.in for Civil Services (Preliminary) Examination which will act as a screening mechanism for selection of candidates for the Indian Forest Service (Main) Examination.

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IFoS Exam Eligibility

The various academic requirements as per the IFoS Eligibility Criteria are given below:

  • Minimum qualification for UPSC exam: The candidate must hold a degree from Government recognised Universities or possess an equivalent qualification.
  • Candidates who are in their final year or awaiting results are also eligible to appear for UPSC preliminary Examination. All such candidates who are likely to appear for IFoS exams must produce proof of having passed the said examination along with the application for the main IFoS examination.
  • Candidates having professional and technical qualifications recognised by the Government as equivalent to professional and technical degrees.
  • Medical students who have passed the final year of MBBS, but are yet to complete their internship also have eligibility for IFoS. Although, along with the Main Examination application, a certificate of course completion (including internship) from the concerned authority of the University/Institution has to be submitted.

IFoS Eligibility Overview

IFoS Exam Age Limit 21 to 32 years
Age Relaxation As per category (mentioned below)
Educational Qualification for IFoS Graduation
Nationality Indian citizens only

UPSC Age Limit – Minimum and Maximum Age for IFoS

UPSC Age Limit for Civil Services Exam 2024

The candidates must have attained 21 years of age and be less than 32 years of age as of 1st August 2024 i.e., the candidate must have been born not earlier than 2nd August, 1990 and not later than 1st August, 2001. The official notification will carry UPSC Age Limit 2024 details. The official notification will carry the details about the age for UPSC Exam 2024.

Category Minimum Age Limit for UPSC Maximum Age Limit for UPSC
IFoS exam Age Limit for General Category 21 32
EWS 21 32
SC/ST 21 32
IFoS OBC Age Limit 21 35

Civil Services Age Limit is an essential factor in the eligibility criteria. Therefore, candidates applying for UPSC Exam should check what is the age for IFoS exam before filling the online application form.

IFoS Eligibility – Age Relaxation & Number of Attempts

(Civil Services Age limit relaxations, as discussed below, will apply).

UPSC Exam Age Limit for General, SC/ST, OBC & Other categories
Category UPSC Age Limit- Upper Relaxation Number of Attempts
General 32 6
OBC 35 9
SC/ST 37 Unlimited (Up to age limit)
Disabled Defence Services Personnel 35 9
Ex-Servicemen 37 9
Persons with
Benchmark Disability – EWS (Economically Weaker Section)
42 9

Note:

As per the IFoS Eligibility for Defence Servicemen, the persons Disabled in operations during hostilities with any foreign country or in a disturbed area and released as a consequence thereof have special Civil Services age limit relaxation.

The IFoS Eligibility states that ECOs/SSCOs who have completed an initial period of assignment of 5 years Military Service as on 1st August 2024 get five years of age relaxation, provided whose assignment has been extended beyond five years and in whose case the Ministry of Defense issues a certificate that they can apply for civil employment and that they will be released on three months’ notice on the selection from the date of receipt of an offer of appointment.

IFoS Eligibility - Nationality

For IFoS and IPS:

  • Candidate must be a citizen of India

All other Services:

  • Candidate must be either:-
    1. A citizen of India, or
    2. A subject of Nepal, or
    3. A subject of Bhutan, or
    4. A Tibetan refugee who came to India before 1st January 1962 intending to settle in India permanently, or
    5. A person of Indian origin (PIO) who has migrated from Pakistan, Burma, Sri Lanka, East African countries of Kenya, Uganda, the United Republic of Tanzania, Zambia, Malawi, Ethiopia, Zaire and Vietnam intending to settle in India permanently.
  • The candidates belonging to categories (2), (3), (4) and (5) should furnish a certificate of eligibility issued by the Government of India. Such candidates may take the exam before getting the said certificate of eligibility, but he/she would get the offer of appointment only after the Government of India has issued the certificate.
  • Point to Note: A person belonging to categories (2), (3) and (4) are not eligible for appointment to the Indian Foreign Service (IFS).

Summary of UPSC Eligibility Criteria for IFoS Exam

Given below is a summary of IFoS eligibility criteria mentioning the UPSC maximum age limit, count of attempts, relaxations, and more. Candidates must satisfy the following conditions to be eligible for the UPSC IFoS Exam:

Nationality for IFoS exam: Must be a citizen of India, a person of Indian origin or a subject of Nepal, Bhutan or Tibet settled in India before 1st January 1962.

Education Qualification for IFoS exam: Candidate must hold a Graduate Degree from a recognised University.

UPSC Civil Services Exam Age Limit: Candidate must be a minimum of 21 years of age and must not be more than 32 years of age.

Category wise UPSC CSE age limit, relaxation and maximum attempts

  1. General Category & EWS: 32 years; 6 attempts.
  2. OBC (with certificate): 32 years + 3 years; 9 attempts.
  3. SC/ST: 32 years + 5 years; unlimited attempts.
  4. Physically Disabled: 32 years + 10 years; Gen/OBC/Person with Benchmark Disability(EWS category)- 9 attempts & SC/ST unlimited attempts.
  5. Jammu & Kashmir Domicile: 32 years + 5 years + (3 years, if OBC OR 5 Years, if SC/ST); Number of attempts depends on the reserved category.
  6. Disabled and discharged Defence service personnel: 32 years + 3 years + (3 years, if Gen/OBC OR 5 years, if SC/ST)
  7. Ex-Servicemen Commission Officer: 32 years + 5 years + (3 years, if OBC OR 5 Years, if SC/ST)

IFoS Exam Pattern

The Indian Forest Service Examination will consist of two successive stages

  • Stage I: Civil Services (Preliminary) Examination (Objective type) for the selection of candidates for the Indian Forest Service (Main) Examination; and
  • Stage II: Indian Forest Service (Main) Examination (Written and Interview) for the selection of candidates for the Indian Forest Service
  • Stage III: UPSC Personality Test (IFoS Interview)

Stage I: IFoS Exam - UPSC Prelims

Sl. No.

Name of the Paper

Nature of the Paper

Duration of the Exam

Questions

Marks

1

IFoS Exam Paper – I: General Studies

Merit Ranking Nature

2 Hours

100

200 Marks

2

IFoS Exam Paper – II: General Studies (CSAT)

Qualifying Nature

2 Hours

80

200 Marks

  • The questions in the IFoS Exam (Prelims) are of the objective type or Multiple Choice Questions (MCQs).
  • There is ‘Negative Marking’ in the IFoS Exam for each incorrect answer but only in the Prelims stage. The negative marking for incorrect answers will be 1/3rd (0.66) of the allotted marks of that question.
  • The GS Paper II (CSAT) in IFoS exam is of qualifying nature and candidates should score a minimum of 33 per cent in this paper to qualify to the next stage of the IFoS exam i.e. the Mains.
  • Blind candidates are given an extra time of 20 minutes for each paper in the IAS Exam (Prelims).
  • It is mandatory for the candidates to appear in both the papers of civil services prelims exam for the evaluation.
  • The marks scored by the candidates in the preliminary examination are not counted for the final score. It is only a screening test where candidates not securing the cut-off marks are eliminated.

Stage II: IFoS Exam – UPSC Mains

The written examination consisting of the following papers:—

Paper

Name of the Paper

Marks

Paper I

General English

300 Marks

Paper II

General Knowledge

300 marks

Papers III, IV, V and VI.—Any two subjects to be selected from the list of the optional subjects (Given Below)

Paper III

Optional Subject 1: Paper 1

200 marks

Paper IV

Optional Subject 1: Paper 2

200 marks

Paper V

Optional Subject 2: Paper 1

200 marks

Paper VI

Optional Subject 2: Paper 2

200 marks

List of optional subjects: (i) Agriculture (ii) Agricultural Engineering (iii) Animal Husbandry & Veterinary Science (iv) Botany (v) Chemistry (vi) Chemical Engineering (vii) Civil Engineering (viii) Forestry (ix) Geology (x) Mathematics (xi) Mechanical Engineering (xii) Physics (xiii) Statistics (xiv) Zoology

The candidates will not be allowed to offer the following combination of subjects: (a) Agriculture and Agricultural Engg. (b) Agriculture and Animal Husbandry & Veterinary Science. (c) Agriculture and Forestry. (d) Chemistry and Chemical Engg. (e) Mathematics and Statistics. (f) Of the Engineering subjects viz. Agricultural Engineering, Chemical Engineering, Civil Engineering and Mechanical Engineering—not more than one subject.

General Instructions (Main Examination):

  • All the question papers for the examination will be of conventional (essay) type.
  • ALL QUESTION PAPERS MUST BE ANSWERED IN ENGLISH. QUESTION PAPERS WILL BE SET IN ENGLISH ONLY.
  • The duration of each of the papers referred to above will be three hours.
  • The Commission have discretion to fix qualifying marks in any or all the papers of the examination.
  • If a candidate's handwriting is not easily legible, deduction will be made on this account from the total marks otherwise accruing to him/her.
  • Marks will not be allotted for mere superficial knowledge.
  • Credit will be given for orderly, effective and exact expression combined with due economy of words in all subjects of the examination.
  • In the question papers, wherever required, SI units will be used.

Stage III: Interview for Personality Test

  • The candidate will be interviewed by a Board of competent and unbiased observers who will have before them a record of his/her career.
  • The object of the Interview is to assess the personal suitability of the candidate for the Service.
  • The candidate will be expected to have taken an intelligent interest not only in his/her subjects of academic study but also in events which are happening around him/her both within and outside his/her own state or country, as well as in modem currents of thoughts and in new discoveries which should rouse the curiosity of well-educated youth.
  • The technique of the interview is not that of a strict cross examination, but of a natural, though directed and purposive conversation, intended to reveal mental qualities of the candidate.
  • The Board will pay special attention to assessing the intellectual curiosity, critical powers of observation and assimilation, balance of judgment and alertness of mind, initiative, tact, capacity for leadership; the ability for social cohesion, mental and physical energy and powers of practical application; integrity of character; and other qualities such as topographical sense, love for outdoor life and the desire to explore unknown and out of way places.
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IFoS Exam Syllabus

UPSC Syllabus for IFoS Prelims

It is important to know the syllabus for UPSC Prelims as it is the screening test that qualifies candidates for the next stage, i.e. Mains. All UPSC Exam aspirants must familiarise themselves with the exam pattern and UPSC Exam syllabus first, and then move on with the preparation. However, Reliable Academy is the best coaching classes in Mumbai for UPSC.

Exam Pattern & Syllabus for UPSC Prelims 
Two Compulsory Papers General Studies Paper-I
General Studies Paper-II (CSAT)
Number of Questions asked in GS Paper-I 100
Number of Questions asked in CSAT 80
Total Number of Marks 400

  • GS Paper-I – 200 Marks
  • CSAT – 200 Marks
Negative Marking  ⅓ of the total marks allotted to the question will be deducted for every wrong answer
Time Allotted Two hours each
  • GS Paper-I – 2 Hours (9:30 AM -11:30 AM)
  • CSAT – 2 Hours (2:30 PM – 4:30 PM)

The two papers of the UPSC prelims are discussed in detail below:

  1. General Studies
    • The General Studies test is the first paper of the preliminary examination.
    • This test is intended to test the general awareness of a candidate in a wide range of subjects that include: Indian Polity, Geography, History, Indian Economy, Science and Technology, Environment and Ecology, International Relations and associated UPSC current affairs.
  2. Civil Services Aptitude Test (CSAT) (Generally conducted between 2:30 PM and 04:30 PM)
    • This UPSC Prelims syllabus for CSAT intends to assess the aptitude of the candidate in solving 'Reasoning and Analytical' questions, apart from 'Reading Comprehension' and the occasionally asked 'Decision Making' questions.
    • The 'Decision Making' based questions are generally exempt from negative marks.

To be noted:

  • The preliminary examination is only meant for screening a candidate for the subsequent stages of the exam.
  • The marks obtained in the Prelims will not be added up while arriving at the final rank list.

The subjects included in the prelims are common for all. However, there is an option to opt for a few subjects in the mains phase of the examination. Reliable Academy gives you best coaching class in Thane for UPSC Examination.

UPSC Syllabus for GS Paper (Prelims Paper I)
  • Current events of national and international importance.
  • History of India and Indian National Movement.
  • Indian and World Geography-Physical, Social, Economic Geography of India and the World.
  • Indian Polity and Governance – Constitution, Political System, Panchayati Raj, Public Policy, Rights Issues, etc.
  • Economic and Social Development – Sustainable Development, Poverty, Inclusion, Demographics, Social Sector initiatives, etc.
  • General issues on Environmental Ecology, Biodiversity, and Climate Change – that do not require subject specialisation.
  • General Science

UPSC Syllabus for CSAT Paper (Prelims Paper-II)

  • Comprehension
  • Interpersonal skills including communication skills
  • Logical reasoning and analytical ability
  • Decision-making and problem solving
  • General mental ability
  • Basic numeracy (numbers and their relations, orders of magnitude, etc.) (Class X level), Data interpretation (charts, graphs, tables, data sufficiency, etc. – Class X level)

UPSC Syllabus for Mains

The standard of papers in General English and General Knowledge will be such as may be expected of a Science or Engineering graduate of an Indian University.

THE SCOPE OF THE SYLLABUS FOR OPTIONAL SUBJECT PAPERS FOR THE EXAMINATION IS BROADLY OF THE HONOURS DEGREE LEVEL I.E. A LEVEL HIGHER THAN THE BACHELOR’S DEGREE AND LOWER THAN THE MASTERS DEGREE. IN THE CASE OF ENGINEERING SUBJECTS, THE LEVEL CORRESPONDS TO THE BACHELOR’S DEGREE. There will be no practical examination in any of the subjects.

UPSC Syllabus for IFoS Mains Paper I: GENERAL ENGLISH

  • Candidates will be required to write an essay in English.
  • Other questions will be designed to test their understanding of English and workmanlike use of words.
  • Passages will usually be set for summary or precis.
  • UPSC Syllabus for IFoS Mains Paper II: GENERAL KNOWLEDGE

  • General Knowledge including knowledge of current events and of such matters of every day observation and experience in their scientific aspects as may be expected of an educated person who has not made a special study of any scientific subject.
  • The paper will also include questions on Indian Polity including the political system and the Constitution of India, History of India and Geography of a nature which the candidate should be able to answer without special study
  • UPSC Syllabus for IFoS Mains Paper III, IV, V and VI: OPTIONAL SUBJECTS

  • Total number of questions in the question papers of optional subjects will be eight.
  • All questions will carry equal marks.
  • Each paper will be divided into two parts, viz. Part A and Part B, each part containing four questions. Out of eight questions, five questions are to be attempted. One question in each part will be compulsory.
  • Candidates will be required to answer three more questions out of the remaining six questions, taking at least one question from each Part. In this way, at least two questions will be attempted from each Part i.e. one compulsory question plus one more.
  • AGRICULTURE

    PAPER-I

    •        Ecology and its relevance to man, natural resources, their sustainable management and conservation. Physical and social environment as factors of crop distribution and production. Climatic elements as factors of crop growth, impact of changing environment on cropping pattern as indicators of environments. Environmental pollution and associated hazards to crops, animals, and humans.

    •        Cropping pattern in different agro-climatic zones of the country. Impact of highyielding and short-duration varieties on shifts in cropping pattern. Concepts of multiple cropping, multistorey, relay and intercropping, and their importance in relation to food production. Package of practices for production of important cereals, pulses, oil seeds, fibres, sugar, commercial and fodder crops grown during Kharif and Rabi seasons in different regions of the country. Important features, scope and propagation of various types of forestry plantations such as extension, social forestry, agro-forestry, and natural forests.

    •        Weeds, their characteristics, dissemination and association with various crops; their multiplication; cultural, biological and chemical control of weeds. Soil-physical, chemical and biological properties. Processes and factors of soil formation. Modern classification of Indian soils, Mineral and organic constituents of soils and their role in maintaining soil productivity. Essential plant nutrients and other beneficial elements in soils and plants. Principles of soil fertility and its evaluation for judicious fertilizer use, integrated nutrient management. Losses of nitrogen in soil, nitrogen-use efficiency in submerged rice soils, nitrogen fixation in soils. Fixation of phosphorus and potassium in soils and the scope for their efficient use. Problem soils and their reclamation methods.

    •        Soil conservation planning on watershed basis. Erosion and run-off management in hilly, foot hills, and valley lands; processes and factors affecting them. Dry land agriculture and its problems. Technology of stabilising agriculture production in rain fed agriculture area.

    •        Water-use efficiency in relation to crop production, criteria for scheduling irrigations, ways and means of reducing run-off losses of irrigation water. Drip and sprinkler irrigation. Drainage of water-logged soils, quality of irrigation water, effect of industrial effluents on soil and water pollution.

    •        Farm management, scope, important and characteristics, farm planning. Optimum resources use and budgeting. Economics of different types of farming systems. Marketing and pricing of agricultural inputs and outputs, price fluctuations and their cost; role of co-operatives in agricultural economy; types and systems of farming and factors affecting them.

    •        Agricultural extension, its importance and role, methods of evaluation of extension programmes, socio-economic survey and status of big, small, and marginal farmers and landless agricultural labourers; farm mechanization and its role in agricultural production and rural employment. Training programmes for extension workers; lab-to-land programmes.

     

    PAPER-II

    •        Cell Theory, cell structure, cell organelles and their function, cell division, nucleic acids-structure and function, gene structure and function. Laws of heredity, their significance in plant breeding. Chromosome structure, chromosomal aberrations, linkage and cross-over, and their significance in recombination breeding. Polyploidy, euploid and an euploids. Mutation-micro and macro-and their role in crop improvement. Variation, components of variation. Heritability, sterility and incompatibility, classification and their application in crop improvement. Cytoplasmic inheritance, sex-linked, sex influenced and sex-limited characters.

    •        History of plant breeding. Modes of reproduction, selfing and crossing techniques. Origin and evolution of crop plants, centre of origin, law of homologous series, crop genetic resources-conservation and utilization. Application of principles of plant breeding to the improvement of major field crops. Pure-line selection, pedigree, mass and recurrent selections, combining ability, its significance in plant breeding. Hybrid vigour and its exploitation, backcross method of breeding, breeding for disease and pest resistance, role of inter-specific and inter-generic hybridization. Role of biotechnology in plant breeding. Improved varieties, hybrids, composites of various crop plants.

    •        Seed technology, its importance. Different kinds of seeds and their seed production and processing techniques. Role of public and private sectors in seed production, processing and marketing in India.

    •        Physiology and its significance in agriculture. Imbibitions, surface tension, diffusion and osmosis. Absorption and translocation of water, transpiration and water economy. Enzymes and plant pigments; photosynthesis-modern concepts and factors affecting the process, aerobic and non-aerobic respiration; C, C and CAM mechanisms. Carbohydrate, protein and fat metabolism.

    •        Growth and development; photo-periodism and vernalization. Auxins, hormones, and other plant regulators and their mechanism of action and importance in agriculture. Physiology of seed development and germination; dormancy.

    •        Climatic requirements and cultivation of major fruits, plants, vegetable crops and flower plants; the package of practices and their scientific basis.Handling and marketing problems of fruit and vegetables. Principal methods of preservation of important fruits and vegetable products, processing techniques and equipment. Role of fruits and vegetables in human nutrition. Raising of ornamental plants, and design and layout of lawns and gardens. Diseases and pests of field vegetables, orchard and plantation crops of India. Causes and classification of plant pests and diseases. Principles of control of plant pests and diseases Biological control of pests and diseases. Integrated pest and disease management. Epidemiology and forecasting. Pesticides, their formulations and modes of action. Compatibility with rhizobial inoculants. Microbial toxins.

    •        Storage pests and diseases of cereals and pulses, and their control.

    •        Food production and consumption trends in India. National and international food policies. Production, procurement, distribution and processing constraints. Relation of food production to national dietary pattern, major deficiencies of calorie and protein.

    IFoS Salary

    The UPSC IFoS salary varies according to the designation and place of posting. One of the most lucrative options is to travel all over the country to some of the most spectacular locations.

    The salary for the various posts under the UPSC IFoS are:

    Job Profile

    Annual Pay

    Principal Chief Conservator of Forest

    INR 15,00,000

    Additional Principal Chief Conservator of Forest

    INR 14,00,000

    Chief Inspector General of Forest

    INR 13,00,000

    Deputy Inspector General of Forest

    INR 12,00,000

    Assistant Inspector General of Forest

    INR 10,00,000


    IFoS Exam Result

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    IFoS Exam FAQ

    Q 1. What is the full form of UPSC IFoS?

    Ans: The full form of UPSC IFoS is UPSC Indian Forest Service (IFoS), which is one of the most competitive and prestigious All India Services.

    Q 2. What are the various positions offered to an IFoS officer?

    Ans: Some of the posts that are offered to IFoS officers based on the results and promotion are- Principal Chief Conservator of Forests, Chief Conservator of Forests, Conservator of Forests and Deputy Conservator of Forests.

    Q 3. Can a graduate in any specialization become an IFoS officer?

    Ans: No, in order to become an IFoS officer, the candidate must have completed graduation only in any of the following subjects- Animal Husbandry & Veterinary Science, Botany, Chemistry, Geology, Mathematics, Physics, Statistics and Zoology.

    Q 4. What are the facilities offered to IFoS officers?

    Ans: Some of the facilities offered to IFoS officers are Accommodation is very cheap rates, Household helpers, Vehicles, Free electricity and Free call services.

    Q 5. What are the facilities offered to IFoS officers?

    Ans: Some of the facilities offered to IFoS officers are Accommodation is very cheap rates, Household helpers, Vehicles, Free electricity and Free call services.

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