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SSC Scientific Assistant (IMD) 2026: Complete Syllabus, Exam Pattern, Eligibility & Free Mock Tests

Prepare for the Scientific Assistant post in the India Meteorological Department (IMD), Ministry of Earth Sciences. Access official in-depth syllabus for Physics, Computer Science & Electronics, 5-year cutoff analysis, and exam-pattern CBT mock tests on PerfectRank.in.

Pay ScaleLevel 6 (₹35,400+)
CadreGroup 'B' Non-Gazetted
Total Marks200 Marks (200 Qs)
Duration120 Minutes (2 Hrs)

SSC Scientific Assistant (IMD) 2026: Exam Headlines & Key Highlights

The Staff Selection Commission (SSC) conducts the open competitive Computer Based Examination (CBE) on behalf of the India Meteorological Department (IMD), Ministry of Earth Sciences, Government of India. It is one of the most prestigious central government technical opportunities for science, computer science, and electronics graduates, offering a permanent Group 'B' gazetted-level pay structure and nationwide posting in advanced observational laboratories.

Exam ParameterOfficial Specification
Exam TitleSSC Scientific Assistant in India Meteorological Department (IMD) Examination
Recruiting CommissionStaff Selection Commission (SSC)
Client DepartmentIndia Meteorological Department (IMD), Ministry of Earth Sciences
Post ClassificationGeneral Central Service, Group ‘B’ Non-Gazetted, Non-Ministerial
Pay Scale & MatrixPay Level 6 (₹35,400 – ₹1,12,400) under 7th CPC (Gross: ₹56,000 – ₹68,000/month)
Exam Mode & StagesSingle-stage Computer Based Examination (Part I + Part II) followed by DV & Medical
Total Questions & Marks200 Questions | 200 Marks (Part I: 100 Marks, Part II: 100 Marks)
Composite Duration120 Minutes (2.0 Hours) continuous sitting
Marking Scheme+1.0 mark for each correct response; -0.25 mark penalty for wrong response
Calculator FacilityVirtual on-screen scientific calculator provided on CBT screen

Who is Eligible for SSC IMD Scientific Assistant? (Detailed Criteria)

Unlike general graduate-level examinations like SSC CGL or CHSL, the Scientific Assistant post has rigorous technical qualification clauses. To avoid disqualification at the stage of Document Verification, candidates must ensure they meet all four essential conditions below:

1. Essential Educational Qualification (Any ONE of the following):

  • Bachelor's Degree in Science (B.Sc.): Must have studied Physics as one of the compulsory subjects for at least two years (or across all semesters) from a recognized University.
  • Bachelor's Degree in Computer Science / IT / Computer Applications: Candidates holding B.Sc. (Computer Science), B.Sc. (Information Technology), or BCA (Bachelor of Computer Applications) from a recognized institution.
  • Diploma in Electronics & Telecommunication Engineering: A 3-year Diploma after 10th standard, or a 2-year lateral entry Diploma after 10+2, recognized by AICTE or State Technical Boards.
  • B.E. / B.Tech Degrees: Degree holders in Computer Science, IT, Electronics, Electronics & Communication (ECE), Telecommunication, or related disciplines are eligible as equivalent qualifications.

2. Mandatory 10+2 (Intermediate) Subject Mandate (Critical):

The candidate MUST have passed the 10+2 (Higher Secondary / Intermediate) examination with both Mathematics and Physics as subjects from a recognized Board.
Important: If a candidate studied Biology or Arts in 10+2 and subsequently pursued BCA, they are NOT eligible under the official recruitment rules.

3. Minimum 60% Aggregate Marks or 6.75 CGPA:

Candidates must have secured at least 60% marks in aggregate (or a CGPA of 6.75 on a 10-point scale) in their qualifying degree or diploma. Candidates with less than 60% (e.g. 59.9%) are not considered eligible as there is no rounding-off allowed.

4. Medical & Physical Standards:

Candidates must possess sound mental and bodily health. Crucially, normal color vision is required because Scientific Assistants interpret multi-spectral satellite images, radar Doppler reflectivity graphs, and weather maps where color discrimination is essential.

Age Limit & Category-Wise Relaxations

The standard prescribed age limit for the SSC IMD Scientific Assistant post is 18 to 30 years as on the crucial date of eligibility mentioned in the official notification. Candidates must have been born not earlier than the specified date and not later than the lower age cutoff.

CategoryAge Relaxation PermittedMaximum Permissible Age
Unreserved (UR) / EWSNo relaxation30 Years
OBC (Non-Creamy Layer)3 Years33 Years
Scheduled Caste (SC) / Scheduled Tribe (ST)5 Years35 Years
PwD (Unreserved / EWS)10 Years40 Years
PwD (OBC)13 Years43 Years
PwD (SC / ST)15 Years45 Years
Ex-Servicemen (ESM)3 years after deduction of military service from actual ageAs per Govt Rules
Central Govt Civilian Employees (General)Up to 35 years of age (min 3 years continuous service)35 Years

* Note: The date of birth recorded in your Secondary School / Matriculation Certificate is accepted as the final proof of age.

SSC Scientific Assistant (IMD) 2026 - Syllabus, Exam Pattern, Eligibility, Free Mock Tests

SSC IMD Scientific Assistant Exam Pattern (CBE)

The examination is conducted as a single-stage online Computer Based Examination comprising 200 objective multiple-choice questions (MCQs) carrying 200 marks. The test lasts for 120 minutes (2 hours) continuously without any sectional pauses.

Part I: General Aptitude (Non-Technical) — 100 Questions | 100 Marks

SectionNo. of QuestionsMaximum MarksMedium
1. General Intelligence & Reasoning25 Questions25 MarksEnglish & Hindi
2. Quantitative Aptitude25 Questions25 MarksEnglish & Hindi
3. English Language & Comprehension25 Questions25 MarksEnglish Only
4. General Awareness25 Questions25 MarksEnglish & Hindi
Total for Part I100 Questions100 Marks

Part II: Technical Discipline (Domain Specific) — 100 Questions | 100 Marks

During application submission, candidates must choose ONE discipline matching their academic stream:

Optional Technical DisciplineQuestionsMarksStandard / Level
Discipline 1: Physics100 Questions100 MarksB.Sc. Degree Standard
Discipline 2: Computer Science & Information Technology100 Questions100 MarksB.Sc. CS / BCA / Degree Standard
Discipline 3: Electronics & Telecommunication Engineering100 Questions100 MarksDiploma / Degree Standard

Negative Marking Rule

Each incorrect answer incurs a deduction of 0.25 marks (one-fourth of the mark assigned). Questions left unanswered attract no deduction.

Multi-Shift Normalization

Because the exam is conducted across multiple shifts with varying difficulty in Part II, raw marks are normalized using the standard Commission formula before finalizing merit.

Official Comprehensive Syllabus Breakdown

A high score in SSC IMD requires balancing speed in Part I with conceptual problem-solving depth in Part II. Below is the full topic-wise syllabus as notified by the Commission:

Part I: General Aptitude Syllabus (All Candidates)

1. General Intelligence & Reasoning:

Analogies, similarities and differences, spatial visualization, spatial orientation, problem solving, analysis, judgment, decision making, visual memory, discriminating observation, relationship concepts, arithmetical reasoning, verbal and figure classification, arithmetical number series, non-verbal series, coding and decoding, statement conclusion, syllogistic reasoning.

2. Quantitative Aptitude:

Computation of whole numbers, decimals and fractions, relationship between numbers, percentages, ratio and proportion, square roots, averages, interest (simple and compound), profit and loss, discount, partnership business, mixture and alligation, time and distance, time and work, basic algebraic identities, graphs of linear equations, triangles, circles, trigonometric ratios, heights & distances, histograms, frequency polygons, bar diagrams & pie charts.

3. English Language & Comprehension:

Spotting the error, fill in the blanks, synonyms/homonyms, antonyms, spellings/detecting mis-spelt words, idioms & phrases, one-word substitution, improvement of sentences, active/passive voice of verbs, conversion into direct/indirect narration, shuffling of sentence parts, cloze passage, reading comprehension passages.

4. General Awareness:

Questions are designed to test knowledge of current events, scientific aspects of day-to-day observation, India and its neighboring countries especially pertaining to History, Culture, Geography, Economic Scene, General Policy & Scientific Research. Specific focus on environmental science, weather, atmosphere, and Earth sciences.

Part II: Technical Subject Syllabi (Choose Your Stream)

Stream A: Physics Detailed Syllabus

Mechanics & General Properties: Newton’s laws, conservation of momentum & energy, rotational dynamics, moment of inertia, gravitation, Kepler’s laws, elasticity, surface tension, viscosity, fluid dynamics, Bernoulli's theorem.
Thermal Physics & Thermodynamics: Kinetic theory of gases, zeroth, first and second laws of thermodynamics, Carnot cycle, entropy, heat transfer (conduction, convection, radiation), black body radiation, Planck’s radiation formula.
Waves & Optics: Simple harmonic motion, resonance, Doppler effect, ultrasonic waves, interference (Young’s double slit, Newton’s rings), diffraction (Fresnel and Fraunhofer), polarization, lasers, fiber optics.
Electricity & Magnetism: Gauss's law, capacitors, Biot-Savart law, Ampere's law, Faraday's laws of induction, Maxwell's equations, alternating current circuits, resonance, electromagnetic waves.
Modern & Solid State Physics: Photoelectric effect, Compton effect, de Broglie hypothesis, Bohr's atomic model, nuclear properties, radioactivity, semiconductor diode, transistors, logic gates.

Stream B: Computer Science & Information Technology Syllabus

Computer Organization & Architecture: Data representation, Boolean algebra, combinational & sequential circuits, CPU design, instruction pipelining, memory hierarchy, cache memory mapping, virtual memory, I/O organization.
Operating Systems: Processes, threads, CPU scheduling algorithms, process synchronization, semaphores, deadlock detection & prevention, memory management (paging, segmentation), file systems.
Programming & Data Structures: C & C++ programming fundamentals, functions, pointers, dynamic allocation; Arrays, linked lists, stacks, queues, binary trees, binary search trees, hashing, graph traversals (BFS, DFS), sorting & searching algorithms.
Database Management Systems (DBMS): ER diagrams, relational algebra, SQL queries, normalization (1NF, 2NF, 3NF, BCNF), transaction processing, ACID properties, indexing.
Computer Networks & Web Technologies: OSI model, TCP/IP protocol suite, IP addressing & subnetting, routing algorithms, transport layer protocols (TCP, UDP), DNS, HTTP, web basics (HTML, CSS, JavaScript), network security (firewalls, encryption).

Stream C: Electronics & Telecommunication Engineering Syllabus

Semiconductor Devices & Analog Circuits: P-N junction diodes, Zener diodes, BJT, JFET, MOSFET, small signal amplifiers, frequency response, feedback amplifiers, operational amplifiers (Op-Amp configurations, inverting, non-inverting, filters, oscillators).
Digital Electronics: Logic gates, Karnaugh maps (K-Maps), multiplexers, decoders, encoders, flip-flops (SR, JK, D, T), shift registers, ripple and synchronous counters, semiconductor memories (RAM, ROM).
Signals & Communication Systems: Signals & systems basics, Fourier transform, AM and FM modulation and demodulation, noise in communication, digital modulation (PAM, PWM, PCM, ASK, FSK, PSK, QAM).
Advanced Telecom & Instrumentation: Radar principles, antennas (dipole, horn, parabolic reflector), satellite link budget, microwave waveguides, optical fiber systems, electronic measurement devices (CRO, multimeters, transducers).

SSC IMD Scientific Assistant: Last 5-Year Cutoff Trends & Score Analysis

Understanding previous cutoff benchmarks is crucial for goal setting. Below are the official normalized cutoff marks out of 200 for the computer-based exam across recent cycles:

Category2022 CBE Official Cutoff2017 CBE CutoffRecommended Safe Score (2026)
Unreserved (UR)138.64138.00146 – 152
OBC (Non-Creamy)130.54128.75138 – 144
EWS126.89N/A (Introduced later)134 – 140
Scheduled Caste (SC)114.78114.25122 – 128
Scheduled Tribe (ST)104.23101.00112 – 118
PwD (OH / HH / Others)68.50 – 92.4060.00 – 72.5085 – 100

Strategic Insight for 2026 Aspirants:

1. Consistency of Cutoff: Notice that UR cutoff hovered around 138 marks in both 2017 and 2022 despite increased applicant numbers. This occurs because the technical Part II paper maintains rigorous standards that prevent score inflation.

2. Scoring Part I vs Part II: Successful candidates typically score 75–82 marks out of 100 in Part I (Reasoning, English, and Maths are high scoring) and 65–70 marks in Part II technical discipline to comfortably clear the final merit barrier.

Frequently Asked Questions (FAQs) — 10 Common Doubts Answered

Proven 4-Phase Strategy to Clear SSC IMD Scientific Assistant

Phase 1: Master Non-Tech Speed (Part I)

Dedicate early weeks to Reasoning and Quantitative Aptitude. Solving 50 questions in under 40 minutes with 90%+ accuracy ensures you bank 40+ raw marks before opening Part II.

Phase 2: Deep Core Technical Drills (Part II)

Whether you choose Physics, CS, or Electronics, practice numerical formulas and standard engineering concepts. Get comfortable with the on-screen virtual calculator.

Phase 3: Solve Official 2017 & 2022 PYQs

Analyze the exact question patterns from the 2022 and 2017 official shift papers. Notice repeated conceptual themes in thermodynamics, operating systems, and op-amps.

Phase 4: Full-Length CBT Simulation on PerfectRank

Take timed 120-minute mock tests. Test your fatigue threshold and fine-tune your strategy to allocate 45 minutes to Part I and 75 minutes to Part II.