Indian Forest Service

Indian Forest Service is usually mentioned as IFoS. UPSC IFS is mentioned for Indian Foreign Service.

Indian Forest Service is one of the UPSC Exam in which its Preliminary Examination is incorporated with CSE Preliminary Exam. All State Forest Department’s high positions are held by IFoS Officers. The main motive of IFoS officers is to maintain the ecological balance and to implement the National Forest Policy which aims to ensure environmental stability.

Non-chordata and chordata : (a) Classification and relationship of various phyla upto sub-classes; Acoelomata and Coelomata; Protostomes and Deuterostomes, Bilateralia and Radiata; Status of Protista, Parazoa, Onychophora and Hemichordata; Symmetry.

Papers III, IV, V and VI.—Any two subjects to be selected from the list of the optional subjects below. Each subject will have two papers.— 200 marks for each paper.

Probability :
Sample space and events, probability measure and probability space, random variable as a measurable function, distribution function of a random variable, discrete and continuous-type random variable probability mass function, probability density function, vector-valued random variable, marginal and conditional distributions, stochastic independence of events and of random variables

Classical Mechanics
(a) Particle dynamics:
Centre of mass and laboratory coordinates conservation of linear and angular momentum. The rocket equation. Rutherford scattering, Galilean transformation, inertial and non-inertial frames, rotating frames, centrifugal and Coriolis forces, Foucault pendulum.

IFoS Preliminary Exam Date – 27th June, 2021 rescheduled to 10th October, 2021-IFoS Main Exam – November, 2021 ( Tentative )

Theory of Machines
Kinematic and dynamic analysis of planar mechanisms. Cams, Gears and gear trains,Flywheels, Governors, Balancing of rigid rotors, Balancing of single and multicylinder engines, Linear vibration analysis of mechanical systems (single degree and two degrees of freedom), Critical speeds and whirling of shafts, Automatic Controls, Belts and chain drives. Hydrodynamic bearings.

For both writing and marking answers in the OMR sheet [Answer Sheet], candidates must use black ball pen

Linear Algebra
Vector, space, linear dependence and independence, subspaces, bases, dimensions. Finite dimensional vector spaces. Matrices, Cayley-Hamiliton theorem, Eigen values and Eigenvectors, matrix of  linear transformation, row and column reduction, Echelon form, equivalence, congruence and similarity

Download e-Admit card-No Admit Card will be sent by post-Preliminary and Main exam e-Admit card can be downloaded

Indian Forest Service Preliminary exam Fee is Rs.100/ -Main Exam Fee is Rs.100/-Female/SC/ST/Persons with Benchmark Disability Candidates are exempted from paying the exam fee.

General Geology The Solar System, meteorities, origin and interior of the earth. Radioactivity and age of earth; Volcanoes- causes and products, volcanic belts. Earthquakes-causes, effects, earthquake belts, seismicity of India, intensity and magnitude, seismongraphs. Island arcs, deep sea trenches and mid-ocean ridges.

Allotment of Centres will be on the “first‐apply‐first allot” basis, and once the capacity of a particular Centre is attained, the same will be frozen. The candidates should note that no request for change of Centre will be entertained.

Paper I General Studies ( Compulsory ) – 100 Questions-Objective Type – multiple choice questions – 200 Marks (2 Hours duration )-Negative Marking-0.33 Marks will be deducted

Silviculture – General Silvicultural Principles : ecological and physiological factors influencing vegetation, natural and artificial regeneration of forests; methods of propagation, grafting techniques; site factors

Engineering Mechanics, Strength of Materials and structural Analysis-Fluid Mechanics-Hydrology

Civil Services (Preliminary) Examination, separate lists will be prepared for the candidates eligible to appear in the Civil Service (Main)-based on the criterion of minimum qualifying marks of 33% in General Studies Paper-II of Civil Services (Preliminary) Examination

Indian Forest Service Vacancies – 110 (approximately)

Fluid and Particle Dynamics-Mass Transfer-Heat Transfer-Noval Separation Processes-Process Equipment Design

Age Limits-Educational Qualification-Number of attempts-Restricted Candidates-Medical and Physical Standards

Atomic structure-Chemical bonding-Solid state-The gaseous state-Thermodynamics and statistical thermodynamics-Phase equilibria and solutions

Microbiology and Plant Pathology-Cryptogams-Phanerogams-Plant Utility and Exploitation-Morphogenesis-Cell Biology-Genetics, Molecular Biology and Evolution

Last date for filling online Application is 24th March, 2021-withdraw Application-IFoS Main Exam Application form will be called in the month of August, 2021 (Tentative)

Animal Nutrition-Animal Physiology-Livestock Production and Management-Genetics and Animal Breeding-Health and Hygiene-Animal Diseases-Veterinary Public Health

Soil and Water Conservation : Scope of soil and water conservation. Mechanics and types of erosion, their causes. Irrigation and Drainage : Sources of water for irrigation. Planning and design of minor irrigation projects. Techniques of measuring soil moisture – laboratory and in situ, Soil-water plant  relationships. Water requirement of crops.