IES Exams Classes In Pune Mumbai India

What is IES?

Indian Engineering Services comprise of engineers who work under the government of India and designated as Class – 1 officer. They administer a large segment of the public sector economy, which constitutes of Indian Railways, Power, Telecommunications, Central Water engineering, Defense service of Engineers, Central Engineering Service, etc. The nature of work performed by these bureaucrats largely depends on their engineering branch and the service or cadre they are recruited in. The career progression goes smoothly attaining high esteem. The first position offered is that of Asst. Executive engineer and the hierarchy ends at the position of Chairman/ Managing Director.

A combined competitive examination is conducted by the Union Public Services Commission (UPSC) for recruitment to the Indian Engineering Services. The Examination constitutes of a written examination followed by an interview for the personality test. The recruitment of qualified candidates is made under the following categories:

  1. Civil Engineering
  2. Mechanical Engineering
  3. Electrical engineering
  4. Electronics & Telecommunication Engineering

How to prepare for IES?

  • ESE written exam consists of both objective and conventional type questions hence theory, conceptual knowledge and problem solving techniques are equally important.
  • Good writing skills, excellent presentation, subjective theory, explanations, derivations, diagrams and equations will fetch you good marks in conventional or subjective paper.
  • Be aware of exam pattern like how many technical & non-technical questions are asked, negative marks, weightage, exam duration and marks per question. Always make a habit of referring previous year question papers.
  • Prefer Reference books for derivations, equations, conceptual thinking, theory etc.

Short Cut Techniques: Use short techniques for numerical solving instead of traditional  approach.

  • Reading news paper, watching morning bulletin, surfing websites will help the candidates to prepare and score better in the General ability paper carrying 200 marks.
  • Do not neglect General Ability part as this section is scoring and also plays an important role in personal interview.
  • Practice previous year question papers and analyze the weak topics and concentrate more on those topics. Always try to solve the papers in given time to obtain an idea that how many questions you are able to solve in given time limits.
  • Intense knowledge of the subjects, strong basics, and clear concepts helps in better understanding of the subjects and prove to be instrumental in getting good scores.

Personal Interview: Sound technical knowledge, Positive attitude, Body language, Good communication skills, knowledge about current affairs plays an important role to clear personal interviews. Candidates should be prepared for the questions about their strengths and weaknesses.

(I) Nationality:

A candidate must be either:

(a)  A citizen of India or.

(b) A subject of Nepal or A subject of Bhutan or.

(c)  A Tibetan refugee who came over to Indian before the 1st January, 1962 with the intention of permanently settling in India, or.

(d)  A person of Indian origin who has migrated from Pakistan, Burma, Sri Lanka or East African countries of Kenya, Uganda, the United Republic of Tanzania, Zambia, Malawi, Zaire and Ethiopia or from Vietnam with the intention of permanently settling in India.

Provided that a candidate belonging to categories (b), (c) and (d) above shall be a person in whose favor a certificate of eligibility has been issued by the Government of India.

(II) Age Limits:

(a) A candidate for this examination must have attained the age of 21 years and must not have attained the age of 30 years on the 1st August, of the current year.

(b) The upper age-limit of 30 years will be relax able up to 35 years in the case of Government servants of the following categories, if they are employed in a Department/Office under the control of any of the authorities mentioned in column 1 below and apply for admission to the examination for all or any of the Service(s)/Posts mentioned in column 2, for which they are otherwise eligible.

 (c) The upper age-limit prescribed above will be further relaxable:

(i) Upto a maximum of five years if a candidate belongs to a scheduled caste or a scheduled tribe.

(ii) Upto a maximum of three years in the case of candidates belonging to OBC category.

(iii) Upto a maximum of five years if a candidate had ordinarily been domiciled in the state of Jammu & Kashmir during the period from 1st January, 1980 to the 31st day of December, 1989.

(iv) Upto a maximum of three years in the case of defense service personnel disabled in operations during hostilities with any foreign country or in a disturbed area, and released as a consequence thereof;

(v) Upto a maximum of five years in the case of ex-servicemen including Commissioned Officers and ECOs/SSCOs who have rendered at least five years Military Service as on 1st August, and have been released (i) on completion of assignment (including those whose assignment is due to be completed within one year from 1st August, ) otherwise than by way of dismissal or discharge on account of misconduct or inefficiency, or (ii) on account of physical disability attributable to Military Service or (iii) on invalidment;  (vi) Upto a maximum of five years in the case of ECOs/SSCOs who have completed an initial period of assignment of five years of Military Services as on 1st August, and 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 they will be released on three months notice on selection from the date of receipt of offer of appointment.

(vii) Upto a maximum of 10 years in the case of blind, deaf-mute and Orthopaedically handicapped persons.

 (III) Minimum Educational Qualification:

(a) Obtained a degree in Engineering from a university incorporated by an act of the central or state legislature in India or other educational institutions established by an act of Parliament or declared to be deemed as universities under section-3 of the university grants commission act, 1956; or.

(b) Passed Section A and B of the Institution Examinations of the Institution of Engineers (India); or.

(c) Obtained a degree/diploma in Engineering from such foreign University/College/Institution and under such conditions as may be recognised by the Government for the purpose from time to time, or.

(d) Passed Graduate Membership Examination of the Institute of Electronics and Telecommunication Engineers (India); or.

(e) Passed Associate Membership Examination Parts II and III/Sections A and B of the Aeronautical Society of India; or.

(f) Passed Graduate Membership Examination of the Institution of Electronics and Radio Engineers, London held after November, 1959.

Provided that a candidate for the post of Indian Naval Armament Service (Electronics Engineering Posts and Engineer Group ‘A’ in Wireless Planning and Coordination Wing/Monitoring Organization) may possess any of the above qualifications or the qualification mentioned below namely: M.Sc. degree or its equivalent with Wireless Communication, Electronics, Radio Physics or Radio Engineering as a special subject.

IES 2015 Exam Pattern

Subject Duration Marks
General Ability Test(Part A: General English)

(Part B: General Studies)

2 hours 200
Objective Paper I 2 hours 200
Objective Paper II 2 hours 200
Conventional  Paper I 3 hours 200
Conventional Paper II 3 hours 200
Personality Test 200


1. Thermodynamics, Cycles and IC Engines, Basic concepts, Open and Closed systems. Heat and work. Zeroth, First and Second Law, Application to non-Flow and Flow processes. Entropy, Availability, Irreversibility and Tds relations. Claperyron and real gas equations, Properties of ideal gases and vapours. Standard vapour, Gas power and Refrigeration cycles. Two stage compressor. C-I and S.I. Engines. Pre-ignition, Detonation and Diesel-knock, Fuel injection and Carburation, Supercharging. Turbo-prop and Rocket engines, Engine Cooling, Emission & Control, Flue gas analysis, Measurement of Calorific values. Conventional and Nuclear fuels, Elements of Nuclear power production.

2. Heat Transfer and Refrigeration and Airconditioning. Modes of heat transfer. One dimensional steady and unsteady conduction. Composite slab and Equivalent Resistance. Heat dissipation from extended surfaces, Heat exchangers, Overall heat transfer coefficient, Empirical correlations for heat transfer in laminar and turbulent flows and for free and forced Convection, Thermal boundary layer over a flat plate. Fundamentals of diffusive and connective mass transfer, Black body and basic concepts in Radiation, Enclosure theory, Shape factor, Net work analysis. Heat pump and Refrigeration cycles and systems, Refrigerants. Condensers, Evaporates and Expansion devices, Psychrometry, Charts and application to air conditioning, Sensible heating and cooling, Effective temperature, comfort indices, Load calculations, Solar refrigeration, controls, Duct design.

3. Fluid Mechanics.
Properties and classification of fluids, Manometry, forces on immersed surfaces, Center of pressure, Buoyancy, Elements of stability of floating bodies. Kinematics and Dynamics.
Irrotational and incompressible. Inviscid flow. Velocity potential, Pressure field and Forces on immersed bodies. Bernoulli’s equation, Fully developed flow through pipes, Pressure drop calculations, Measurement of flow rate and Pressure drop. Elements of boundary layer theory, Integral approach, Laminar and tubulent flows, Separations. Flow over weirs and notches. Open channel flow, Hydraulic jump. Dimensionless numbers, Dimensional analysis, Similitude and modelling. One-dimensional isentropic flow, Normal shock wave, Flow through convergent – divergent ducts, Oblique shock-wave, Rayleigh and Fanno lines.

4. Fluid Machinery and Steam Generators.
Performance, Operation and control of hydraulic Pump and impulse and reaction Turbines, Specific speed, Classification. Energy transfer, Coupling, Power transmission, Steam generators Fire-tube and water-tube boilers. Flow of steam through Nozzles and Diffusers, Wetness and condensation. Various types of steam and gas Turbines, Velocity diagrams. Partial admission. Reciprocating, Centrifugal and axial flow Compressors, Multistage compression, role of Mach Number, Reheat, Regeneration, Efficiency, Governance.


Kinematic and dynamic analysis of planer mechanisms. Cams. Gears and gear trains. Flywheels. Governors. Balancing of rigid rotors and field balancing. Balancing of single and multicylinder engines, Linear vibration analysis of mechanical systems. Critical speeds and whirling of shafts Automatic controls.

Design of Joints : cotters, keys, splines, welded joints, threaded fasteners, joints formed by interference fits. Design of friction drives : couplings and clutches, belt and chain drives, power screws.
Design of Power transmission systems : gears and gear drives shaft and axle, wire ropes.
Design of bearings : hydrodynamics bearings and rolling element bearings.

Stress and strain in two dimensions, Principal stresses and strains, Mohr’s construction, linear elastic materials, isotropy and anisotropy, stress-strain relations, uniaxial loading, thermal stresses. Beams : Bending moment and shear force diagram, bending stresses and deflection of beams. Shear stress distribution. Torsion of shafts, helical springs. Combined stresses, thick-and thin-walled pressure vessels. Struts and columns. Strain energy concepts and theories of failure.

Basic concepts on structure of solids. Crystalline maferials. Detects in crystalline materials. Alloys and binary phase diagrams. Structure and properties of common engineering materials. Heat treatment of steels. Plastics, Ceramics and composite materials. Common applications of various materials.

Metal Forming : Basic Principles of forging, drawing and extrusion; High energy rate forming; Powder metallurgy.
Metal Casting : Die casting, investment casting, Shall Moulding, Centrifugal Casting, Gating & Riser design; melting furnaces.
Fabrication Processes : Principles of Gas, Arc, Shielded arc Welding; Advanced Welding Processes, Weldability: Metallurgy of Welding.
Metal Cutting : Turning, Methods of Screw Production, Drilling, Boring, Milling, Gear Manufacturing, Production of flat surfaces, Grinding & Finishing Processes. Computer Controlled Manufacturing Systems-CNC, DNC, FMS, Automation and Robotics.
Cutting Tools Materials, Tool Geometry, Mechanism of Tool Wear, Tool Life & Machinability; Measurement of cutting forces. Economics of Machining. Unconventional Machining Processes. Jigs and Fixtures. Fits and tolerances, Measurement of surface texture, Comparators Alignment tests and reconditioning of Machine Tools.

Production Planning and Control : Forecasting – Moving average, exponential smoothing, Operations, scheduling; assembly line balancing, Product development, Break-even analysis, Capacity planning, PERT and CPM.
Control Operations : Inventory control ABC analysis, EOQ model, Materials requirement planning. Job design, Job standards, Work measurement, Quality Management – Quality analysis and control. Operations Research : Linear Programming – Graphical and Simplex methods, Transportation and assignment models. Single server queueing model.
Value Engineering : Value analysis for cost/value.

Computer Organisation, Flow charting, Features of Common computer Languages – FORTRAN, d Base III, Lotus 1-2-3, C and elementary Programming.

Departments Allocation through ESE

  1. Mechanical Engineering
  2. Indian Railway Service of Mechanical Engineers
  3. Indian Railway Stores Service
  4. Indian Defense Service of Engineers
  5. Central Mechanical & Electrical Engineering Service (Mechanical Post)
  6. Central Water Engineering Service Group-A (Mechanical Post)
  7. Central Power Engineering Service (Mechanical Post)
  8. Indian Ordnance Factories Services
  9. Indian Inspection Service Group A
  10. Central Engineering Service (Roads) Group-A
  11. Indian Supply Service Group A (Mechanical Posts)
  12. Assistant Executive Engineer Group A Geological Survey of India
  13. Assistant Naval Store Officer Grade-I in Indian Navy
  14. Indian Naval Armament Service
  15. Assistant Executive Engineer in Corps of EME, Ministry of Defense

Strategy for the Engineering Services Examination

The foundation of success can be laid on the resolute efforts but a sound strategy accompanied by never say die spirit makes the recipe of success sipid. Success can’t be achieved overnight hence a prudent strategy matters a lot. For success in Engineering Services Exam, a candidate is required to have excellent fundamentals in the core subjects, along with thorough update on general awareness, current affairs and no less, all the traits of matured personality. Following subsequent points will be worth mentioning and aspirants should necessarily keep a note of the same viz:

  • Get acquainted with the latest examination pattern and syllabus of the exam. Go through the previous year’s question papers. Compare them and see what types of questions are repeated every year.
  • It is advisable not to refer several books for same topic; it is better to refer one good book for each topic, which clarifies basic concepts. Selective books are advisable for selected topics.
  • For every candidate time management is very essential along with setting of the target. Johann Wolfgang von Goethe is apt in his words “One always has time enough, if one will apply it well.” The first step which every candidate should follow is to make a time table. Take one subject from each section of technical syllabus and devote at least 3 hours daily to it. Try to devote 1 hour each to English and General Studies so that candidate can take an edge as it is key differentiator for being in top rankers.
  • Manage the time table such that it has good distribution of study hours for General Ability Section and technical papers, as it makes studies enjoyable and it becomes easy to sustain the momentum for longer hours, without boredom setting in and without losing interest and enthusiasm.
  • Prepare short-term study goals, execute and align them with the long term ones to succeed in the    examination.
  • While studying the technical subjects don’t forget to make short notes of important topics. Make a separate list of formulae for each subject and revise the short notes and formulae list daily.
  • Candidates should solve all the previous question papers and also practice all the questions which are given in good books; this will help them to assess their level of understanding of the subjects.
  • Candidates while solving questions should set the time limit for the task and once finished solving it they must ensure that the task was completed within the stipulated time.
  • It is better to practice questions on OMR sheets for marking the answers, which will help to practice the marking of correct answers on OMR sheets quickly in the examinations.
  • Similar guidelines should be repeated for another subject and candidates should not forget to revise important portion and short notes of the subjects prepared earlier.
  • While preparing for English, segregate vocabulary from previous 10 years papers of Engineering Services Examination and Combined Defense Services Examination. Try to memorize at least 20 words daily and don’t forget to revise those words.
  • The next step is to prepare portion of English and  daily solve 10 to 15 questions based on finding errors and rearrangement of sentences
  • From the topics of general studies, find out the areas of interests and study in the form of a story or correlate the topics. This will help in easy understanding of the topics.
  • Read Newspaper and articles, watch morning bulletin, surf websites in order to prepare for general ability paper. The currents affairs coverage of 45 days prior to the commencement date of exam.
  • Solve all the previous question papers of General Science to know the main areas of G.S from where questions are asked.
  • For making conventional portion strong and scoringgood marks, try to solve at least 5 questions daily from the previous 10 years papers and solve expected conventional questions from the topics taken up same day. It will improve presentation and enhance the writing skills along with the rectification of the silly mistakes made during the examination.
  • Always remember “Practice Makes a Man Perfect”. Reserve last 15 days, for quick practice and revision. Candidates should solve as many papers as they can to score better. Practice full-length mock test comprising of all the sections, within the fixed time period.

Tips and tricks for solving the papers

  • The first motto of the candidates while solving the question papers is to optimally utilize allotted time.
  • The Objective Paper-I consists of 120 questions which are evenly based on English and General Studies. The questions on the topics of rearrangement of sentences and Comprehension are tedious and time consuming so it is suggested to solve those questions after completion of rest of the paper.
  • While solving the comprehension part first read the passage carefully to get the general idea about the topic, now read the questions asked and then mark the lines which are related to the questions and answer accordingly.
  • A candidate should attempt hard questions at the end after completing easy questions.
  • While solving technical objective papers, try to solve the questions on theory first and then work on numerical questions as there is Negative Markingfor each wrong answer and cut off is to be cleared in these papers hence never try to mark those answers in which there is any confusion.
  • On third day of examination there are two conventional papers. Before solving the paper, first of all read the question paper thoroughly and mark those questions which can be easily solved.
  • Write answers step by step in a tidy and organized manner to give an impressive presentation and it is a best way to memorize all the essential points. All the diagrams drawn (if required) should be neat and well labeled with a free hand sketch. You will get the credit for orderly, effective, and exact expression combined with due economy of words in the conventional papers of the examination
  • Write formula while solving a numerical problem, mention the S.I units of concerned quantities and also specify your answer.

Steps to enhance your performance

  • Success in the examination requires consistency, never say die spirit and most importantly self motivation.
  • Healthy ideas grow in a healthy mind so along with studies do devote some time in recreational activities, which enhances memorizing power and efficiency.
  • Keep safely all the documents related to examination such as acknowledgment of application, hall ticket, application number and other details. This is to avoid last minute tension for obvious things.
  • A day prior to the examination don’t study much, just revise the important notes which you have made. Relax and sleep for atleast 6 hours so that you write exam with fresh mind.
  • Keep atleast 2 sharpened pencils, eraser, sharpener, 2 pens, calculator, hall ticket, etc. in your examination kit.
  • Ensure reaching your exam centre before time and avoid studying during traveling.
  • Don’t panic till the last moment, just remain calm and quiet and be confident of the preparation done.

Previous  years cut-off.

2009 333 285 238 226
2010 314 278 242 239
2011 359 311 300 278
2012 366 327 288 235
2013 418 373 320 290
2014 442 408 345 325

Batch Durtion- 

IES+Gate+Psu –   (8-9 months)

Gate+ Psu-    (6-7 months)