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Group ‘B’ posts in Level 6 (₹35,400 – ₹1,12,400) for Civil, Electrical, Mechanical and Telecom engineers, plus Scientific Assistant in the IMD. Two computer based papers — Paper-I only qualifies you; Paper-II alone decides the merit list.
SSC JE 2026 is the Staff Selection Commission’s open competitive Junior Engineer Examination 2026 for recruitment to Junior Engineer posts across Government of India organisations, and to Scientific Assistant posts in the India Meteorological Department. There are 1,748 tentative vacancies in Group ‘B’, Level 6 of the 7th CPC Pay Matrix (₹35,400 – ₹1,12,400). Online applications run from 2 September to 22 September 2026 (23:00 hrs), with fee payment open till 23 September and a correction window from 28 to 30 September 2026. Selection is by a two-stage computer based examination: Paper-I (200 marks, qualifying) tentatively in October–November 2026, and Paper-II (300 marks) tentatively in December 2026 — and only normalized Paper-II scores determine the final merit list.
A degree or a three-year diploma in the relevant branch, depending on the organisation. Several posts additionally require two or three years of post-qualification working experience.
Paper-I gets you through the door. Final ranks come from Paper-II alone — where a wrong answer costs a full mark, not a quarter.
From Border Roads and Military Engineer Services to CPWD, NTRO, the Department of Telecommunication and the IMD. Post allotment follows merit plus your stated preferences.
The age cut-off is fixed separately at 1 August 2026, so it does not move with the application window. Examination dates are tentative and any change is announced only on the Commission’s website.
One application only. Submitting more than one Online Application Form with different registration numbers gets all of them rejected and the candidature cancelled. Appearing more than once at any stage additionally attracts debarment. The toll-free helpline for form-filling difficulty is 180 030 930 63.
Fourteen organisations, each with its own qualification requirement and, in some cases, its own age limit and experience condition. Read the row that matches the post you intend to prefer.
| Organisation | Post | Essential qualification | Age |
|---|---|---|---|
| Border Roads Organization | JE (C), JE (E&M) | Degree in the relevant branch; or three-year diploma plus two years' experience in planning, execution or maintenance | 30 |
| Brahmaputra Board, Ministry of Jal Shakti | JE (C) | Three-year diploma in Civil Engineering | 30 |
| Central Water Commission | JE (C), JE (M) | Bachelor's degree or diploma in the relevant branch | 30 |
| Central Public Works Department (CPWD) | JE (C), JE (E) | Diploma in Civil, or in Electrical or Mechanical Engineering | 32 |
| Central Water and Power Research Station | JE (C), JE (E) | Diploma in the relevant branch from a recognised institute | 30 |
| DGQA-Naval, Ministry of Defence | JE (M), JE (E) | Degree in the relevant branch; or three-year diploma plus two years' experience | 30 |
| Farakka Barrage Project, Ministry of Jal Shakti | JE (C), JE (E) | Diploma in the relevant branch | 30 |
| Military Engineer Services (MES) | JE (C), JE (E&M) | Degree in the relevant branch; or three-year diploma plus two years' experience | 30 |
| National Technical Research Organization (NTRO) | JE (C) | Diploma in Civil Engineering | 30 |
| Directorate General of Lighthouses & Lightships | JE (C), JE (E) | Degree in the relevant branch; or diploma plus three years' experience; or equivalent | 32 |
| Department of Telecommunication (DoT) | JE (Telecom) | Bachelor's degree in Engineering or Technology in Electrical, Electronics, Electrical Communications, Computer Science, Telecommunications, IT or Instrumentation | 30 |
| India Meteorological Department | Scientific Assistant | B.Sc. with Physics as a subject; or bachelor's degree in Computer Science, Computer Applications, Electronics, E&C, E&TC, Instrumentation, IT, Telecommunication or Communication Engineering | 30 |
| Ministry of Fisheries, Animal Husbandry & Dairying | JE (C) | Degree or three-year diploma in Civil Engineering | 30 |
Cross-eligibility notes from the notice: candidates opting for JE (Mechanical) are also eligible for JE (Electrical & Mechanical). Those opting for JE (Telecom) are also eligible for Scientific Assistant in IMD or JE (Electrical), subject to meeting the qualification. Those opting for JE (Electrical) are also eligible for JE (Telecom) and JE (Electrical & Mechanical). Scientific Assistant candidates are also eligible for JE (Telecom).
Age is reckoned as on 1 August 2026, and the date of birth recorded on your Matriculation certificate is final — a mismatch with the application form is a ground for rejection.
Born not earlier than 2 August 1996 and not later than 1 August 2008.
Born not earlier than 2 August 1994 and not later than 1 August 2008. Applies to CPWD and the Directorate General of Lighthouses & Lightships.
| Code | Category | Relaxation |
|---|---|---|
| 01 | SC / ST | 5 years |
| 02 | OBC | 3 years |
| 03 | PwBD (Unreserved / EWS) | 10 years |
| 04 | PwBD (OBC) | 13 years |
| 05 | PwBD (SC / ST) | 15 years |
| 06 | Ex-Servicemen | 3 years after deducting military service from actual age |
| 08 | Defence personnel disabled in operations (UR / EWS / OBC) | 3 years |
| 09 | Defence personnel disabled in operations (SC / ST) | 8 years |
₹100. Women candidates and candidates belonging to SC, ST, PwBD and Ex-Servicemen categories are exempted. Payment is online only — BHIM UPI, net banking, or Visa, MasterCard, Maestro or RuPay debit card — up to 23 September 2026, 23:00 hrs.
If the fee does not reach SSC, the form status shows ‘Incomplete’ and the application is summarily rejected. Verify it under the ‘Payment Status’ link in your candidate login rather than assuming the transaction went through.
Experience must be post-qualification. Where a post requires two or three years of experience, it must have been acquired after completing the prescribed educational qualification. Internship, training or research done during the course does not count. Distance and online mode engineering qualifications are not accepted except where specifically permitted by the regulator and notified by the UGC.
Both papers are objective multiple-choice, set in Hindi and English only. The subject part you attempt in each paper is the one you locked in on the application form — and it cannot be changed later under any circumstances.
| Section | Questions | Marks | Duration |
|---|---|---|---|
| General Intelligence and Reasoning | 50 | 50 | 2 hours (2 hrs 40 min for scribe-eligible candidates) |
| General Awareness | 50 | 50 | |
| Engineering subject — Part A / B / C / D / E / F / G | 100 | 100 |
| Section | Questions | Marks | Duration |
|---|---|---|---|
| Engineering subject only — Part A / B / C / D / E / F / G | 100 | 300 | 2 hours (2 hrs 40 min for scribe-eligible candidates) |
−0.25 per wrong answer in Paper-I. −1.00 per wrong answer in Paper-II. Each Paper-II question is worth 3 marks, so a wrong answer costs a third of what a correct one earns — guess only after real elimination.
UR 30% · OBC and EWS 25% · all other categories 20%. These apply to both papers.
A scientific calculator is available on screen for the full duration. The IS 456:2000 table and the Steam Table appear under ‘Useful Data’ where relevant. No physical calculator or table is allowed in the lab.
How normalization works here: scores are normalized when a paper runs in multiple shifts. Beyond that, Electrical and Mechanical scores are normalized against each other as if they were different shifts, because the two branches sit different papers whose difficulty can diverge. The Part-D, Part-E and Part-F papers for the IMD post are normalized the same way. Only normalized Paper-II scores enter the final merit list.
Paper-II is your subject alone at 3 marks a question with a 1-mark penalty, so generic material does not help. These are separate courses per branch — notes plus mock papers built on the Paper-I and Paper-II pattern for that subject. Pick the one matching the part you locked in on your application form.
Structural Analysis, Concrete and Steel Structures, Surveying, Soil Mechanics, Fluid Mechanics, Hydrology, Environmental and Transportation Engineering.
Test series & notes → Part-C · MechanicalStrength of Materials, Theory of Machines, Machine Design, Thermal Engineering, Fluid Mechanics, Industrial and Manufacturing Engineering, Metrology.
Test series & notes → Part-B · ElectricalCircuits and Network Theorems, AC Fundamentals, Measurement, Electrical Machines, Generation, Transmission and Distribution, Utilization, Power Electronics.
Test series & notes → Part-D · Scientific AssistantDigital Logic, Computer Organization, Data Structures, Algorithms, Theory of Computation, Compiler Design, Operating Systems, Databases, Computer Networks.
Test series & notes → Part-E · Scientific AssistantElectronic devices, amplifiers and oscillators, digital electronics, antennas and propagation, AM/FM/pulse modulation, multiplexing and digital communication.
Test series & notes →Dedicated courses for the Physics stream (Scientific Assistant) and Junior Engineer (Telecom) are not yet listed. Part-G candidates will find real overlap with the Electronics & Telecommunication material on signals, electromagnetics and communication.
Coming soonWhy branch-specific matters here more than usual: Paper-I gives you 100 subject marks out of 200, and Paper-II is 300 marks of nothing but your subject. Reasoning and General Awareness together are only 100 marks in a paper that gets discarded from the final merit. Practically all of your ranking comes from one branch syllabus.
For Civil, Mechanical and Electrical, the standard of questions is approximately that of a Diploma in Engineering. For Computer Science & IT, Electronics & Telecommunication, Physics and Telecommunication, the standard is approximately graduation level. Paper-I lists the topic heads; Paper-II expands the same heads into detailed subtopics.
Compulsory for every candidate, 50 marks each. These sections do not appear in Paper-II.
Verbal and non-verbal questions on analogies, similarities and differences, space visualization, problem solving, analysis, judgment, decision making, visual memory, discrimination, observation, relationship concepts, arithmetical reasoning, verbal and figure classification, and arithmetical number series. Also includes questions testing the ability to deal with abstract ideas and symbols and their relationships, arithmetical computations and other analytical functions.
General awareness of the environment and its application to society; current events; everyday observations and experience in their scientific aspect. Includes questions on India and its neighbouring countries, especially History, Culture, Geography, Economic Scene, General Polity and Scientific Research. No special study of any discipline is expected.
For the post of JE (Civil). Diploma-level standard.
Paper-I topic heads: Engineering Mechanics · Solid Mechanics · Structural Analysis · Construction Materials and Management · Estimating, Costing and Valuation · Concrete Structures · Steel Structures · Surveying · Soil Mechanics (Geotechnical Engineering) · Fluid Mechanics and Hydraulics · Hydrology and Irrigation Engineering · Environmental Engineering · Transportation (Traffic) Engineering.
System of forces, free-body diagrams, equilibrium equations; internal forces in structures; friction and its applications; centre of mass; moment of inertia.
Bending moment and shear force in statically determinate beams; simple stress and strain relationships; simple bending theory, flexural and shear stresses; uniform torsion; buckling of columns; combined and direct bending stresses.
Statically determinate and indeterminate structures; method of superposition; analysis of trusses, arches, beams, cables and frames; slope deflection and moment distribution methods; influence lines.
Materials: bricks, stones, timber, steel, cement, aggregates, plastics, polymers, glass, concrete, concrete mix design, testing of concrete. Management: types of construction projects; project planning and network analysis — PERT and CPM.
Fundamentals of estimating; cost estimates for works; rate analysis; valuation; detailed estimates.
Working stress and limit state design concepts; design of beams, slabs and columns; foundations and retaining walls; bond and development length.
Working stress and limit state design concepts; bolted connections and welds; design of tension members, compression members and beams; concept of plastic analysis of beams and frames.
Principles of surveying; errors and their adjustment; maps, scale and coordinate systems; distance and angle measurement — chain and compass survey, plane table surveying, levelling and trigonometric levelling; traversing and triangulation survey; total station; tacheometric surveying; theodolite surveying; advanced surveying equipment.
Three-phase system and phase relationships, index properties; Unified and Indian standard soil classification; permeability — one-dimensional flow; seepage through soils — two-dimensional flow, flow nets, uplift pressure, piping, capillarity, seepage force; principle of effective stress and quicksand condition; compaction of soils; one-dimensional consolidation and time rate of consolidation; shear strength, Mohr's circle, effective and total shear strength parameters; stress-strain characteristics of clays and sands.
Properties of fluids, fluid statics; continuity, momentum and energy equations and their applications; laminar and turbulent flow; flow in pipes and pipe networks; concept of lift and drag.
Forces on immersed bodies; flow measurement in channels and pipes; channel hydraulics — energy-depth relationships, specific energy, critical flow, hydraulic jump, uniform flow.
Hydrologic cycle, precipitation, evaporation, evapo-transpiration, watershed, infiltration, unit hydrographs, hydrograph analysis, reservoir capacity, flood estimation and routing; groundwater hydrology — steady-state well hydraulics and aquifers; application of Darcy's law.
Types of irrigation systems and methods; crop water requirements — duty, delta, evapo-transpiration; gravity dams and spillways; lined and unlined canals; cross drainage structures.
Water quality standards — physical, chemical and biological parameters; water quality index; unit processes and operations; water requirement; water distribution systems; drinking water treatment. Sewerage system design, quantity of domestic wastewater, primary and secondary treatment; effluent discharge standards; sludge disposal; reuse of treated sewage.
Air pollution: types of pollutants, sources and impacts, air pollution control, air quality standards, air quality index and limits. Solid waste: characteristics, generation, collection and transportation; engineered systems for solid waste management — reuse and recycle, energy recovery, treatment and disposal.
Geometric design of highways — cross-sectional elements, sight distances, horizontal and vertical alignments; geometric design of railway track — speed and cant. Highway materials, desirable properties and tests; desirable properties of bituminous paving mixes; design factors for flexible and rigid pavements; design of flexible and rigid pavements using IRC codes.
Traffic studies on flow and speed, peak hour factor, accident study, fundamental relationships; traffic signs; signal design by Webster's method; types of intersections; highway capacity.
Preparing Part-A? The Civil test series follows this exact topic order, with mock papers on the Paper-I and Paper-II pattern and the −1 penalty applied as SSC does.
Civil test series & notesFor the post of JE (Electrical) and JE (Electrical & Mechanical). Diploma-level standard.
Paper-I topic heads: Fundamentals of Electrical Engineering · Magnetic Circuits · A.C. Fundamentals · Measurement and Measuring Instruments · Electrical Machines · Special Electric Machines and Synchronous Generators · Generation, Transmission and Distribution · Estimation & Costing · Utilization of Electrical Energy · Basic Electronics · Power Electronics.
Concepts of electrical circuit elements — resistors, capacitors, inductors, batteries, and the factors affecting their values and performance. Concepts of voltage, current, power, energy and flux, and their units. Network solution methods: KCL, KVL, node and mesh analysis. Network theorems: Thevenin's, Norton's, superposition and maximum power transfer.
Concepts of flux, reluctance, self and mutual inductance, magnetomotive force, magnetic circuits.
RMS and average values of alternating waves; simple series and parallel AC circuits; resonance; balanced three-phase circuits; star-delta transformation; complex power and power factor in AC circuits.
Measurement of voltage, current, power and power factor; classification of instruments; types of errors; galvanometer, ammeter, voltmeter, wattmeter, Wheatstone bridge, Kelvin's double bridge, energy meter, megger; constructional features and calibration of single-phase electronic energy meter; CT, PT and their uses.
Single-phase and three-phase transformers. DC machines — types, characteristics, losses, efficiency and applications. AC machines — single-phase and three-phase induction motors, starting, speed control methods, electrical braking and torque-speed characteristics.
Fractional motors, servomotors; armature reaction; parallel operation of generators; synchronization.
Types of power stations; load factor, demand factor and diversity factor; power factor and its improvement; types of transmission and distribution lines; transmission line parameters; corona effect and Ferranti effect; circuit breakers; protection of generators and transformers; coaxial cables, their ratings and efficiency.
Estimation of lighting schemes; electric installation of machines and relevant IE Rules; earthing practices and IE Rules.
Illumination, electric heating, electric welding, electroplating, electric traction and drives.
P-N junction diodes, rectifiers and wave-shapers, clipping and clamping; BJT and FET transistors and their characteristics; amplifiers; oscillators.
Static V-I characteristics of the thyristor; firing and gating circuits for thyristors; DC to DC conversion — buck, boost and buck-boost converters; single-phase half-controlled, full-controlled and midpoint-controlled rectifiers.
Preparing Part-B? The Electrical test series covers all eleven heads above, with sectional tests per topic and full-length papers for both Paper-I and Paper-II.
Electrical test series & notesFor the post of JE (Mechanical) and JE (Electrical & Mechanical). Diploma-level standard.
Paper-I topic heads: Engineering Mechanics · Strength of Materials · Theory of Machines · Machine Design · Materials Science and Engineering · Thermal Engineering · Fluid Mechanics and Hydraulic Machinery · Industrial Engineering · Manufacturing Engineering · Metrology and Measurement · Advanced Manufacturing Processes.
Free body diagrams and equilibrium; resultant of forces; Lami's theorem; laws of friction; sliding and rolling friction; centroid of geometrical plane figures; centre of gravity of simple solids.
Simple stress and strain; types of beams; shear force and bending moment; simple bending and deflection of beams; torsion of shafts; thin cylindrical shells.
Cams and followers; belt, chain, rope and gear drives; gear trains; flywheels and governors; balancing and vibration; brakes; dynamometers; clutches; bearings.
Types of loads and stresses; creep and fatigue; theories of failure; design of cotter joint, knuckle joint, lever and crank; antifriction bearings; design of sunk key, shaft, couplings, spur gear, power screw and springs; design of screw fasteners, bolted joints and welded joints.
Crystal structure and bonds; iron-carbon phase diagram; heat treatment of steel; types of cast iron and steels; major non-ferrous alloys such as aluminium alloys, nickel-copper alloys and bearing alloys; material properties and testing; non-destructive testing; corrosion.
Sources of energy; laws of thermodynamics; thermal power plant; heat pump, heat engine and refrigerator; steam generators; steam turbines — impulse and reaction; cooling tower; internal combustion engines — Otto, Diesel and dual cycles with P-V and T-s diagrams; types of IC engines; air compressors; refrigeration and air conditioning; gas turbine and jet propulsion; properties of steam; steam nozzles; heat transfer — conduction, convection and radiation; heat exchangers.
Properties of fluid; fluid flow; fluid flow through pipes; continuity equation; impact of jets on plates and curved vanes; hydraulic turbines and power plant; centrifugal and reciprocating pumps.
Site selection and plant layout; work study and work measurement; production planning and control; statistical quality control; inventory control.
Pattern making; moulding; casting; metal forming; welding — gas, arc and resistance welding; types of lathe and lathe operations; broaching machine; drilling; milling; gear making; grinding and finishing; press working.
Precision, accuracy, sensitivity, repeatability, range and calibration; linear and angular measurement; comparators; form and surface finish measurement; CMM; limits, fits and tolerances; interchangeability.
Jigs and fixtures; CNC milling machine and machining centre; PLC; special purpose machines; non-traditional machining processes such as EDM, ECM, AJM, LBM and EBM; fundamentals of CAD/CAM; industrial robot configurations and FMS.
Preparing Part-C? The Mechanical test series runs the full syllabus above, and normalization means your score is compared against Electrical candidates — so margins matter.
Mechanical test series & notesFor Scientific Assistant in IMD, CS/IT stream. Graduation-level standard.
Paper-I topic heads: Engineering Mathematics · Digital Logic · Computer Organization and Architecture · Programming and Data Structures · Algorithms · Theory of Computation · Compiler Design · Operating System · Databases · Computer Networks.
Propositional and first-order logic; sets, relations, functions, partial orders and lattices; monoids, groups; graphs — connectivity, matching, colouring; combinatorics — counting, recurrence relations, generating functions.
Matrices, determinants, systems of linear equations, eigenvalues and eigenvectors, LU decomposition. Limits, continuity and differentiability, maxima and minima, mean value theorem, integration. Random variables; uniform, normal, exponential, Poisson and binomial distributions; mean, median, mode and standard deviation; conditional probability and Bayes' theorem.
Boolean algebra; combinational and sequential circuits; minimization; number representations and computer arithmetic (fixed and floating point).
Machine instructions and addressing modes; ALU, data-path and control unit; instruction pipelining and pipeline hazards; memory hierarchy — cache, main memory and secondary storage; I/O interface (interrupt and DMA mode).
Programming in C; recursion; arrays, stacks, queues, linked lists, trees, binary search trees, binary heaps, graphs.
Searching, sorting, hashing; asymptotic worst-case time and space complexity; algorithm design techniques — greedy, dynamic programming and divide-and-conquer; graph traversals, minimum spanning trees, shortest paths.
Regular expressions and finite automata; context-free grammars and push-down automata; regular and context-free languages, pumping lemma; Turing machines and undecidability.
Lexical analysis, parsing, syntax-directed translation; runtime environments; intermediate code generation; local optimization; data flow analysis — constant propagation, liveness analysis, common subexpression elimination.
System calls, processes, threads, inter-process communication, concurrency and synchronization; deadlock; CPU and I/O scheduling; memory management and virtual memory; file systems.
ER model; relational model — relational algebra, tuple calculus, SQL; integrity constraints, normal forms; file organization, indexing including B and B+ trees; transactions and concurrency control.
Concept of layering — OSI and TCP/IP protocol stacks; basics of packet, circuit and virtual circuit switching; data link layer — framing, error detection, medium access control, Ethernet bridging; routing protocols — shortest path, flooding, distance vector and link state routing; fragmentation and IP addressing, IPv4, CIDR notation, IP support protocols (ARP, DHCP, ICMP), NAT; transport layer — flow control, congestion control, UDP, TCP, sockets; application layer protocols — DNS, SMTP, HTTP, FTP, email.
Every topic above — Digital Logic through Computer Networks and Engineering Mathematics — with mock papers on the Paper-I and Paper-II pattern. The same core also carries into SBI SO, IBPS SO and SEBI IT Officer papers, so the preparation is reusable.
For Scientific Assistant in IMD, E&TC stream. Graduation-level standard.
Paper-I topic heads — (A) Electronics: Electronic Materials & Components · Diodes · Transistors · Amplifiers & Oscillators · Voltage Regulation · Network Theorems · AC Circuits · Three-Phase Circuits · Resonance · Digital Electronics · Sequential & Combinational Logic · Data Conversion & Codes. (B) Telecommunications: Antennas · Radio Wave Propagation · Electromagnetic Spectrum · Modulation · Single Sideband · Frequency Modulation · Pulse Modulation · Multiplexing · Digital Communication · RF Communications & Wireless Telecommunications.
Conductors, semiconductors, insulators, magnetic and passive components; characteristics of resistors, capacitors and inductors.
PN junction diode, forward and reverse bias characteristics and equivalent circuits; Zener diode and applications; clipping, clamping and rectifier circuits. Bipolar Junction Transistors, Field Effect Transistors and MOSFETs; biasing and stability; emitter follower and its applications; negative feedback; transistor as a switch.
Multistage amplifiers, feedback, oscillators, multivibrators, power amplifiers; voltage regulation.
Kirchhoff's laws, superposition, Thevenin's, Norton's and maximum power theorems. AC circuits: voltage and current relationships in resistance, inductance and capacitance; reactance, susceptance, conductance, impedance and admittance in series and parallel RL, RC and RLC circuits. Three-phase circuits: star and delta connection diagrams; relation between line and phase voltages and currents. Resonance: series and parallel resonance circuits, condition of resonance, resonant frequency, Q factor and bandwidth.
Logic gates, De Morgan's theorem, Boolean algebra and digital logic circuits, systems and codes; flip-flops, shift registers, frequency counters and combinational logic design; basic concepts of digital-to-analog and analog-to-digital converters and timing circuits.
Basic antenna principles, directive gain, directivity, radiation pattern, broadside and end-fire arrays, Yagi antenna and parabolic antenna. Ground wave propagation, space waves and ionospheric propagation. Electromagnetic spectrum and frequency spectrum.
Modulation and types of modulation; AM, modulation index, power relations in AM, generation and demodulation of AM. SSB: power requirement compared with AM, advantages over AM, balanced modulator, generation of SSB, pilot carrier system, independent side system, vestigial sideband transmission.
FM: definition, bandwidth, noise triangle, pre-emphasis and de-emphasis. Pulse modulation: definition of PM, difference between AM and FM, radio receivers, sampling theorem, PAM, PTM, PWM, PPM, pulse code modulation, quantization noise, companding, PCM system, differential PCM, delta modulation.
FDM and TDM. Introduction to digital communication: PSK, ASK, FSK; introduction to fibre optic systems, propagation of light in optical fibre and the ray model.
Propagation of signals at HF, VHF, UHF and microwave frequencies; satellite communications.
Preparing Part-E? The Electronics & Telecommunication test series covers both halves above — the electronics block and the telecom block — with mock papers in the SSC pattern.
E&TC test series & notesFor Scientific Assistant in IMD, Physics stream (B.Sc. with Physics). Graduation-level standard.
Paper-I topic heads: Mathematical Methods · Mechanics · General Properties of Matter · Oscillations · Waves · Optics · Electricity · Magnetism · Kinetic Theory · Thermodynamics · Modern Physics · Solid State Physics · Semiconductor Devices · Analog and Digital Electronics.
Calculus, integral calculus, differential equations, Fourier series, Taylor expansion, vector algebra, vector calculus, integral theorems, linear algebra and complex numbers, statistics and error analysis.
Newton's laws of motion and applications; coordinate systems and kinematics; inertial and non-inertial frames; centrifugal and Coriolis forces; motion under a central force; Kepler's law; gravitational law; conservative and non-conservative forces; system of particles; conservation laws; elastic and inelastic collisions; moment of inertia; rigid body dynamics.
Elasticity, surface tension, viscosity, fluid dynamics, kinematics of moving fluids, equation of continuity, Euler's equation, Bernoulli's theorem.
Simple harmonic oscillator, superposition of two or more simple harmonic oscillators, Lissajous figures, damped and forced oscillations, resonance, quality factor and bandwidth. Wave equation, travelling and standing waves in one dimension, energy density and energy transmission of waves, group velocity and phase velocity, sound waves, Doppler effect.
Geometrical optics — Fermat's principle, reflection and refraction, mirrors and lenses and image formation; interference of light and diffraction; Rayleigh criterion and resolving power; diffraction gratings; polarization — linear, circular and elliptic; double refraction and optical rotation.
Coulomb's law, electric field, electric potential, Gauss's law, conductors and dielectrics, polarization and bound charges, capacitors and capacitance, electrostatic energy, boundary conditions, Laplace equation and boundary value problems, electric current and current density, Ohm's law, DC circuits, AC circuits (RC, LC, LCR), resonance. Magnetic field, Biot-Savart law, Ampere's circuital law, magnetic vector potential, Lorentz force, motion of charged particles in electric and magnetic fields, electromagnetic induction, Faraday's law, self and mutual induction, Maxwell's equations, displacement current, EM waves, Poynting vector and energy flow, reflection and transmission of EM waves.
Kinetic theory postulates, ideal gas equation, pressure and temperature, degrees of freedom, equipartition theorem, specific heat of mono-, di- and tri-atomic gases, Maxwell's velocity distribution, most probable velocity, mean and RMS velocity, mean free path, van der Waals gas and equation of state. Laws of thermodynamics, thermodynamic processes (isothermal, adiabatic, isobaric, isochoric), entropy, reversible, irreversible and quasi-static processes, Carnot cycle, heat engines and efficiency, Maxwell's thermodynamic relations, thermodynamic potentials, phase transitions, Clausius-Clapeyron equation, microstates, ideas of ensembles, Maxwell-Boltzmann, Fermi-Dirac and Bose-Einstein distributions.
Inertial frames and Galilean invariance, special theory of relativity, black body radiation, photoelectric effect, Compton effect, de Broglie waves, uncertainty principle, X-rays; Schrodinger equation and its solution for one-, two- and three-dimensional boxes, particle in a box, harmonic oscillator, potential steps and barriers, tunnelling; Bohr atom, atomic spectra, Pauli exclusion principle, structure of the atomic nucleus, mass and binding energy, radioactivity and its applications, laws of radioactive decay.
Crystal structure, unit cell and lattice parameters, Bravais lattices, basis and crystal systems, Miller indices, crystal planes and directions, X-ray diffraction and Bragg's law, band theory of solids, conductors, semiconductors and insulators, energy bands, Fermi energy and Fermi level, intrinsic and extrinsic semiconductors, carrier concentration and conductivity, variation of resistivity with temperature. PN junction diode and characteristics, Zener diode and applications, rectifiers, BJT, CB, CE and CC configurations, transistor characteristics.
Single-stage amplifiers, two-stage RC-coupled amplifiers, simple and sinusoidal oscillators, Barkhausen condition, operational amplifiers and applications, inverting and non-inverting amplifiers, integrator and differentiator; Boolean algebra, binary number system, conversion between number systems, binary addition and subtraction; logic gates — AND, OR, NOT, NAND, NOR, XOR; combination of gates, truth tables, De Morgan's theorem.
For the post of JE (Telecom) in the Department of Telecommunication. Graduation-level standard, conducted in a separate batch from Parts A–F.
Paper-I topic heads: Engineering Mathematics · Network Analysis · Signals and Systems · Electronic Devices · Analog Circuits · Digital Circuits · Control Systems · Analog Communications · Digital Communications · Electromagnetics.
Linear algebra: vector space, basis, linear dependence and independence, matrix algebra, eigenvalues and eigenvectors, rank, null space, solution of linear equations, least squares solution. Calculus: mean value theorems, theorems of integral calculus, definite and improper integrals, partial derivatives, maxima and minima, multiple integrals, line, surface and volume integrals, Taylor series. Differential equations: first-order linear and nonlinear, higher-order linear, Cauchy's and Euler's equations, variation of parameters, complementary function and particular integral, partial differential equations, variable separable method, initial and boundary value problems. Vector analysis: vectors in plane and space, vector operations, gradient, divergence and curl, Gauss's, Green's and Stokes' theorems. Complex analysis: analytic functions, Cauchy's integral theorem and formula, sequences, series, convergence tests, Taylor and Laurent series, residue theorem. Probability and statistics: discrete and continuous random variables, mean, median, mode, standard deviation, combinatorial probability, binomial, Poisson, uniform, exponential and normal distributions, PDF, CDF, PMF, joint and conditional probability.
Node and mesh analysis, superposition, Thevenin's, Norton's and Tellegen's theorems; sinusoidal steady state analysis — phasors, complex power, maximum power transfer; transient time and frequency-domain analysis of RL, RC and RLC circuits, solution of network equations using Laplace transform; linear two-port network parameters — Z, Y, h and ABCD, reciprocity and symmetry, interconnections (cascade, series, parallel), wye-delta transformation.
Continuous-time signals: Fourier series, Fourier transform, Laplace transform and properties, sampling theorem, convolution and applications, inverse transforms, transformation of signals. Discrete-time signals: DTFT, DFT, z-transform and properties and inverse transform, discrete-time processing of continuous-time signals. LTI systems: definition and properties, causality, stability, impulse response, convolution, poles and zeros, frequency response, group delay, phase delay, LTI systems in terms of differential and difference equations.
Energy bands in intrinsic and extrinsic semiconductors, equilibrium carrier concentration, direct and indirect band-gap semiconductors; carrier transport — diffusion current, drift current, mobility and resistivity, generation and recombination of carriers, Poisson and continuity equations; P-N junction, Zener diode, BJT, MOS capacitor, MOSFET and their circuit configurations; LED, photodiode and solar cell.
Diode circuits — clipping, clamping and rectifiers; BJT and MOSFET amplifiers — biasing, AC coupling, small-signal analysis, frequency response, current mirrors and differential amplifiers; op-amp circuits — amplifiers, summers, differentiators, integrators, active filters, Schmitt triggers and oscillators.
Number representations — binary, integer and floating-point; combinatorial circuits — Boolean algebra, minimization using Boolean identities and Karnaugh maps, logic gates and static CMOS implementations, arithmetic circuits, code converters, multiplexers, demultiplexers, decoders, encoders, half adder, full adder, look-ahead carry adder, multiplier, comparator; sequential circuits — latches and flip-flops, counters, shift registers, finite state machines, propagation delay, setup and hold time, critical path delay, conversion of flip-flops; data converters — sample and hold circuits, ADCs and DACs; semiconductor memories — ROM, SRAM, DRAM; computer organization — machine instructions and addressing modes, ALU, data-path and control unit, instruction pipelining.
Basic control system components; feedback and feedforward principle; transfer function and Laplace transform; block diagram representation and reduction; signal flow graph and Mason gain formula; transient and steady-state analysis of LTI systems, static and generalized error coefficients; frequency response; Routh-Hurwitz criterion and Nyquist stability criteria; Bode plots, gain margin and phase margin, root locus plots; lag, lead and lag-lead compensation, minimum phase systems; state variable model and solution of state equations, controllability and observability.
Random processes — autocorrelation and power spectral density and properties, wide and strict sense stationary, ergodicity, filtering of random signals through LTI systems, low-pass equivalent of band-pass signals. Noise — properties of white noise, thermal noise, shot noise, noise figure, noise equivalent bandwidth. Amplitude modulation and demodulation, envelope detector, angle modulation and demodulation, efficiency of AM, spectra of AM, DSB-SC modulation and demodulation, Costas receiver, SSB-SC modulation and demodulation, FM modulation and demodulation, NBFM and WBFM, Carson's rule of bandwidth, frequency discriminator, phase locked loop, noise analysis for DSB-SC and SSB-SC, superheterodyne receivers.
Information theory — entropy, conditional entropy, entropy rate, mutual information, capacity of binary symmetric and binary erasure channels, Huffman coding, Shannon-Fano coding, Kraft inequality, Shannon source coding theorem, Shannon channel coding theorem. PCM, DPCM, delta modulation, linear prediction filter, line coding (NRZ and RZ unipolar and polar, Manchester) and their PSD with bandwidth; digital modulation schemes (ASK, PSK, FSK, QAM), bandwidth efficiency, average energy per bit, orthogonal basis representations, minimum distance; inter-symbol interference, eye patterns, Nyquist pulse criteria, raised cosine and RRC pulses, MAP and ML detection, matched filter receiver, SNR, Cauchy-Schwarz inequality, Gram-Schmidt orthogonalization, correlation receiver, BER of digital modulation schemes; error correction codes, block codes, Hamming codes, CRC and convolutional codes.
Cartesian, cylindrical and spherical coordinates and their transformation; electrostatics — electric field and potential due to point, line and surface charge, electric flux density and capacitance; magnetostatics — magnetic induction, Faraday's law, magnetic flux density and strength, Ampere's law, Gauss's law, permeability, energy stored in magnetic field, magnetic vector potential; Maxwell's equations in differential and integral form and their interpretation, boundary conditions, wave equation, Poynting vector; plane waves — reflection and refraction, polarization, phase and group velocity, propagation through various media, skin depth; transmission lines — equations, characteristic impedance, reflection coefficient, VSWR, impedance matching and transformation, S-parameters, Smith chart; rectangular and circular waveguides, light propagation in optical fibres, dipole and monopole antennas, linear antenna arrays.
Paper-I filters, Paper-II ranks. Understanding which paper carries your candidature changes how you allocate the months between now and December.
Score at least the category minimum — 30% UR, 25% OBC and EWS, 20% others. Paper-I is qualifying in nature; its marks do not carry into the final ranking.
Category-wise shortlisting for Paper-II is done on normalized Paper-I scores. Separate merit lists are drawn for JE (Civil), JE (Electrical & Mechanical), Scientific Assistant in IMD and JE (Telecom).
100 questions, 300 marks, your subject only. A wrong answer costs one full mark. Only normalized Paper-II scores are used to determine final merit.
Select lists are prepared separately for each post group, on the basis of post preference combined with normalized Paper-II marks. Once a post is allotted, it is not changed — including where the candidate fails that post's specific physical, medical or educational standards.
Give your preferences serious thought. The Commission is explicit that if you rank a post highly, are selected for it, and then fail its post-specific requirements, your candidature is rejected outright rather than moved to another post. Physical and medical standards apply to some posts, including Junior Engineers in the Border Roads Organization.
Applications go through the Commission's One-Time Registration (OTR) system at ssc.gov.in. Complete OTR first if you have not registered before, then fill the examination-specific form.
The subject or stream you select on the form — Part-A through Part-G — cannot be changed under any circumstances. It governs what you attempt in both Paper-I and Paper-II. Scientific Assistant applicants must pick exactly one of Part-D, Part-E or Part-F to match their degree stream.
Candidates seeking reservation or age relaxation must hold the prescribed certificate in the Government format as on the closing date. PwBD candidates seeking a scribe or compensatory time must upload the applicable disability certificate in the specified annexure format.
Tentative answer keys for both papers appear on the SSC website after each CBE. Representations must be filed online within the stated window at ₹50 per question, which is non-refundable. Letters, applications and emails are not entertained.
There is no provision for re-evaluation or re-checking of scores at any stage or in any paper, and no correspondence on the matter is entertained. The final answer keys and marks are published after the result.
1,748 tentative vacancies across Junior Engineer posts in Government of India organisations and Scientific Assistant posts in the IMD. Post-wise and category-wise vacancy details are published separately on ssc.gov.in. State-wise and zone-wise vacancies are not collected by the Commission — approach the user department for that.
Two computer based papers. Paper-I: 200 questions, 200 marks, 2 hours — Reasoning 50, General Awareness 50, engineering subject 100, with −0.25 per wrong answer. Paper-II: 100 questions, 300 marks, 2 hours, engineering subject only, with −1 per wrong answer. Paper-I is qualifying; only Paper-II normalized scores decide merit.
Yes, and it differs between papers. Paper-I deducts 0.25 marks per wrong answer; Paper-II deducts a full 1 mark. Since each Paper-II question is worth 3 marks, a wrong answer costs you a third of what a right one earns — guessing is far more expensive in the paper that actually ranks you.
30% for UR, 25% for OBC and EWS, and 20% for all other categories. These minimums apply to both Paper-I and Paper-II.
Age is reckoned as on 1 August 2026. For 30-year posts, born not earlier than 2 August 1996 and not later than 1 August 2008. For 32-year posts, not earlier than 2 August 1994 and not later than 1 August 2008. Relaxation: SC/ST 5 years, OBC 3 years, PwBD (UR/EWS) 10 years, PwBD (OBC) 13 years, PwBD (SC/ST) 15 years.
₹100. Women candidates and SC, ST, PwBD and Ex-Servicemen candidates are exempted. Online payment only — BHIM UPI, net banking, or Visa, MasterCard, Maestro or RuPay debit card — up to 23 September 2026 at 23:00 hrs.
Group 'B' posts in Level 6 of the 7th CPC Pay Matrix, ₹35,400 to ₹1,12,400 per month, plus applicable central government allowances.
Yes, for most posts. A three-year diploma in the relevant branch is accepted across many organisations, though several posts additionally require two or three years of working experience in planning, execution or maintenance. That experience must be post-qualification — internship, training or research during the course does not count.
Marks are normalized whenever a paper runs in multiple shifts, using the Commission's procedure notified on 2 June 2025. Beyond that, Electrical and Mechanical scores are normalized against each other by treating them as different shifts, since the branches sit different papers. Part-D, Part-E and Part-F for the IMD post are normalized the same way.
Yes — an on-screen scientific calculator is available for the whole duration, as an icon to the left of your application image. The IS 456:2000 table and the Steam Table also appear on the console under 'Useful Data' where relevant. No physical calculator or printed table is allowed inside the lab.
No. The subject or stream selected on the online application form as per your educational qualification cannot be changed under any circumstances, so choose it carefully at the time of filling the form.
Cross-eligibility is built in. JE (Mechanical) candidates are also eligible for JE (Electrical & Mechanical). JE (Telecom) candidates are also eligible for Scientific Assistant in IMD or JE (Electrical), subject to qualification. JE (Electrical) candidates are also eligible for JE (Telecom) and JE (Electrical & Mechanical). Scientific Assistant candidates are also eligible for JE (Telecom).
Work backwards from the marking scheme. Paper-II is your subject alone at 3 marks a question with a 1-mark penalty, so depth beats breadth and accuracy beats attempt count. Take the Paper-II detailed syllabus above as your checklist, revise topic by topic, and then move to timed full-length papers so you learn where your own guessing threshold sits.
Part-D is the standard graduation-level computer science syllabus — Digital Logic, Computer Organization, Programming and Data Structures, Algorithms, Theory of Computation, Compiler Design, Operating Systems, Databases and Computer Networks, plus Engineering Mathematics. Start with the SSC JE 2026 Computer Science & IT test series and notes, which follows this syllabus directly. The same core also overlaps almost completely with the IT Officer papers for SBI SO, IBPS SO and SEBI, so the preparation carries forward beyond this notification.
Yes — separate branch-wise test series with notes are available for Civil, Mechanical, Electrical, Computer Science & IT and Electronics & Telecommunication. Each follows its own Paper-I and Paper-II syllabus with full-length mocks in the SSC pattern, since Paper-II is your subject alone and generic material is of little use.
No. There is no provision for re-evaluation or re-checking at any stage. Your only route is a representation against the tentative answer key, filed online within the stated window at ₹50 per question, which is non-refundable.
Three hundred marks on your own subject, three marks a question, one mark off for every wrong answer — and Paper-I marks never enter the final merit. That structure rewards candidates who genuinely know their branch syllabus and punishes those who spread thin. Use the detailed Paper-II lists on this page as a revision checklist, then test yourself against the clock.
Topic-by-topic notes that follow the Commission's own sequence, so nothing is missed and nothing irrelevant is added.
Paper-I at 200 questions with −0.25, Paper-II at 100 questions with −1, so your practice score is your real score.
Civil, Mechanical, Electrical, CS & IT and E&TC are separate courses — no padding with subjects you will never be asked.
Full Paper-I and Paper-II coverage with sectional and full-length mocks.
Test series & notes → Part-C · MechanicalFull Paper-I and Paper-II coverage with sectional and full-length mocks.
Test series & notes → Part-B · ElectricalFull Paper-I and Paper-II coverage with sectional and full-length mocks.
Test series & notes → Part-D · Scientific AssistantGraduation-level CS syllabus with mocks; carries into SBI SO, IBPS SO and SEBI too.
Test series & notes → Part-E · Scientific AssistantElectronics and telecommunication halves, both covered with mocks in the SSC pattern.
Test series & notes → All branchesEvery SSC JE 2026 course in one place, with new branches added as they are released.
View all courses →