RRB SSE
Railway Recruitment Board — Senior Section Engineer
RRB SSE (Senior Section Engineer) Exam 2026 - Complete Guide
The RRB SSE (Senior Section Engineer) exam is a national-level recruitment test conducted by the Railway Recruitment Boards (RRBs) under the Ministry of Railways, Government of India. It fills the posts of Senior Section Engineer (SSE) and Section Engineer in disciplines such as Civil, Electrical, Mechanical, Signal & Telecommunication (S&T), Electronics and allied streams. Vacancies are notified through a Centralised Employment Notice (CEN) issued by RRBs. SSE posts are normally notified alongside RRB JE under the same CEN, so candidates must check the latest CEN for discipline-wise posts, eligibility and dates. The recruitment cycle runs periodically based on Railway Board requirements.
Overview / Key Highlights
| Particular | Details |
|---|---|
| Conducting Body | Railway Recruitment Boards (RRBs), Ministry of Railways |
| Exam Level | National level, Group B (technical) |
| Mode / Medium | Online CBT / English & Hindi |
| Selection Stages | CBT 1 → CBT 2 → Document Verification → Medical |
| Number of Papers | Two (CBT 1 and CBT 2) |
| Negative Marking | Yes, 1/3 mark deducted per wrong answer |
| Qualification | 4-year B.E. / B.Tech in relevant engineering discipline |
| Age Limit | 18 to 33 years (category relaxation as per rules) |
| Official Website | rrb.indianrailways.gov.in |
| Application Portal | rrbapply.gov.in |
Selection Process
- CBT 1: 100 questions / 100 marks covering General Awareness, Mathematics, General Intelligence & Reasoning and General Science. It is qualifying in nature; its score does not count in the final merit. Qualifying candidates are shortlisted for CBT 2.
- CBT 2: 150 questions / 150 marks covering General Awareness, Physics & Chemistry, Basics of Computers & Applications, Basics of Environment & Pollution Control and Technical Abilities (discipline-wise). The final merit list is based purely on CBT 2 marks.
- Document Verification: Shortlisted candidates must produce original certificates for educational qualification, age, category and (if applicable) experience.
- Medical Examination: Candidates must pass the prescribed medical fitness standard for the post (as specified in the CEN).
Exam Pattern
CBT 1 (Qualifying in Nature)
| Section | Subject | Questions | Marks |
|---|---|---|---|
| I | General Awareness | 25 | 25 |
| II | Mathematics | 25 | 25 |
| III | General Intelligence & Reasoning | 25 | 25 |
| IV | General Science | 25 | 25 |
| Total | 100 | 100 | |
Duration: 90 minutes. 1/3 negative marking applies. No separate section-wise timing.
CBT 2 (Merit Determining)
| Section | Subject | Questions | Marks |
|---|---|---|---|
| I | General Awareness | 15 | 15 |
| II | Physics & Chemistry | 15 | 15 |
| III | Basics of Computers & Applications | 10 | 10 |
| IV | Basics of Environment & Pollution Control | 10 | 10 |
| V | Technical Abilities (discipline-wise) | 100 | 100 |
| Total | 150 | 150 | |
Duration: 120 minutes. 1/3 negative marking applies. The 150 Q / 120 min pattern is based on the previous RRB JE / SSE cycle (CEN 03/2024) and is tentative; final merit is decided only by CBT 2.
Detailed Syllabus
Compiled from the official RRB JE / SSE CEN pattern and previous year papers. The technical portion is discipline-specific; prepare only the stream matching your applied post.
General Awareness (CBT 1 & CBT 2)
- Indian Railways - history, zones, divisions and manufacturing units
- Current affairs - national and international events (last 6-12 months)
- Indian polity - Constitution, Parliament, judiciary and rights
- Indian economy - budget, banking, inflation and NITI Aayog
- Science & technology news, ISRO and DRDO developments
- Indian history - ancient, medieval, modern and freedom movement
- Geography - India and world, rivers, climate and important locations
- Sports, awards, books & authors, important days and personalities
- Art & culture - dance, music, heritage sites and handicrafts
- Environment - national parks, biodiversity and conferences
Mathematics (CBT 1)
- Number system - HCF, LCM, fractions, surds and indices
- Ratio, proportion and partnership
- Percentage, profit, loss and discount
- Simple interest and compound interest
- Time and work, pipes and cisterns
- Time, speed and distance (trains, boats and streams)
- Average, ages, mixtures and alligation
- Mensuration - 2D and 3D areas and volumes
- Algebra - linear and quadratic equations, polynomials
- Trigonometry - identities, heights and distances
- Geometry - lines, angles, triangles and circles
- Data interpretation - tables, bar graphs and pie charts
- Permutation, combination and probability
General Intelligence & Reasoning (CBT 1)
- Analogies - number, letter, word and figure analogies
- Number, alphabet and figure series
- Classification / odd one out
- Coding - decoding and matrix coding
- Blood relations and family trees
- Direction and distance sense test
- Order and ranking, sitting arrangement and puzzles
- Venn diagrams and syllogism
- Mirror and water images, paper folding and cutting
- Embedded and counting of figures, dice and cubes
- Clock and calendar, mathematical operations
General Science (CBT 1)
- Physics - motion, force, work, energy and gravitation
- Physics - light, sound, heat, electricity and magnetism
- Chemistry - atoms, molecules, reactions, acids, bases and salts
- Chemistry - metals, non-metals, periodic table and everyday chemistry
- Biology - cell structure and classification of plants and animals
- Biology - human body systems, nutrition and immunity
- Biology - genetics and reproduction basics
- Environment - ecosystems, pollution and conservation
- Everyday science - vitamins, minerals and deficiency diseases
Physics & Chemistry (CBT 2)
- Units, dimensions and measurements
- Mechanics - laws of motion, work, power and energy
- Gravitation and satellite motion
- Properties of matter - elasticity, surface tension and viscosity
- Heat and thermodynamics
- Waves and sound - Doppler effect, echoes
- Optics - reflection, refraction, lenses and mirrors
- Electricity and magnetism - Ohm's law, circuits, induction
- Atomic structure, periodic table and electronic configuration
- Chemical bonding - ionic and covalent bonds
- Acids, bases, salts, pH, oxidation and reduction
- Organic chemistry - hydrocarbons and functional groups
Basics of Computers & Applications (CBT 2)
- Computer fundamentals - hardware, software and devices
- Operating systems - Windows and file management
- MS Office - Word, Excel, PowerPoint and shortcuts
- Internet, e-mail, browsers and web terminology
- Computer networks - LAN, WAN, topologies and devices
- Data storage - memory units, RAM, ROM and storage devices
- Databases - basic concepts and queries
- Computer viruses, malware and cyber security basics
- Digital payments, e-governance and IT Act awareness
Basics of Environment & Pollution Control (CBT 2)
- Ecosystem - structure, food chains and food webs
- Air, water, soil, noise and thermal pollution
- Pollutants - sources, effects and control measures
- Global warming, greenhouse effect and ozone depletion
- Waste management - solid, hazardous and e-waste
- Air and water quality standards and monitoring
- Environmental acts - EPA 1986 and Wildlife Protection Act
- Sustainable development and renewable energy
- Biodiversity conservation and climate conventions
Technical Abilities - Civil Engineering
- Engineering mechanics - statics, dynamics and friction
- Strength of materials - stress, strain, beams and deflection
- Structural analysis - determinate and indeterminate structures
- Concrete technology - cement, aggregates and mix design
- RCC and steel structures - slabs, columns and footings
- Surveying - chain, compass, levelling and total station
- Geotechnical engineering - soil and foundations
- Hydraulics - fluid flow, dams and irrigation
- Transportation engineering - highways, pavements and bridges
- Environmental engineering - water supply and sewage
Technical Abilities - Electrical Engineering
- Electrical circuits - KCL, KVL and network theorems
- Electromagnetic fields and magnetic circuits
- Electrical machines - DC machines, transformers, induction and synchronous machines
- Power systems - generation, transmission, distribution and protection
- Switchgear - circuit breakers, relays and earthing
- Control systems - transfer functions, stability and PID
- Power electronics - converters, inverters and thyristors
- Electrical measurements and instrumentation
- Digital electronics and microprocessor basics
- Utilisation of electrical energy - traction, lighting and drives
Technical Abilities - Mechanical Engineering
- Engineering mechanics and strength of materials
- Thermodynamics - laws, cycles and properties of steam
- Fluid mechanics and machinery - pumps and turbines
- Internal combustion engines - working and performance
- Heat transfer - conduction, convection and radiation
- Manufacturing - casting, welding, machining and forming
- Machine design - shafts, gears, bearings and springs
- Theory of machines - kinematics and mechanisms
- Industrial engineering - production planning and quality
- Automobile engineering - chassis, brakes and transmission
- Railway rolling stock and maintenance
Technical Abilities - Electronics, Signal & Telecommunication
- Basic electronics - diodes, transistors, amplifiers and oscillators
- Digital electronics - logic gates and sequential circuits
- Analog and digital communication - modulation and coding
- Microprocessors and microcontrollers - 8085 and 8051
- Signal processing - filters and transforms
- Control systems and S&T instrumentation
- Networking, switching and data communication
- Railway signalling - block signalling and interlocking
- Railway telecommunication - GSM-R, optical fibre and radio
Technical Abilities - Other Engineering Streams
- Chemical engineering - unit operations and reaction engineering
- Computer Science / IT - data structures, DBMS and networks
- Instrumentation - transducers and process control
- Electronics & Communication - communication systems and VLSI basics
- Metallurgy - iron and steel making and heat treatment
- Production / Industrial engineering - manufacturing systems
Marking Scheme
| Parameter | Details |
|---|---|
| Marks per question (CBT 1) | 1 mark (100 Q / 100 marks) |
| Marks per question (CBT 2) | 1 mark (150 Q / 150 marks) |
| Negative marking | 1/3 mark for every wrong answer; no penalty for unanswered |
| CBT 1 qualifying | Section-wise cut-offs (approx. UR 30%, OBC 25%, SC/ST 20%) - tentative |
| Final merit | CBT 2 marks only; category-wise cut-offs as per vacancies |
| Cut-off factors | Vacancies, difficulty level, applicants and reservation policy |
| Normalisation | Multi-session normalisation may apply if test runs in shifts |
Eligibility Criteria
Educational Qualification
- A 4-year B.E. / B.Tech degree (or equivalent such as AMIE) in the relevant engineering discipline from a recognised university.
- The discipline must match the applied post (Civil, Electrical, Mechanical, S&T, Electronics, Computer Science, Chemical, etc.).
- Final-year candidates can apply provisionally but must submit proof of qualification at Document Verification.
Age Limit (tentative, based on previous cycle)
| Category | Relaxation | Upper Age Limit |
|---|---|---|
| UR / EWS | None | 33 years |
| OBC (NCL) | +3 years | 36 years |
| SC / ST | +5 years | 38 years |
| PwBD | +10 years (UR) and more for others | As per rules |
| Ex-Servicemen and others | As per Government norms | As per rules |
The 18-33 age bracket is based on the previous cycle and is tentative; confirm the current CEN.
Application Process & Fees
- Register on the official portal rrbapply.gov.in with a valid e-mail ID and mobile number.
- Fill the online form with personal, educational and post details; upload photograph, signature and certificates.
- Pay the application fee online via UPI, net banking, credit card or debit card.
- Select your RRB zone; each RRB issues its own CEN.
- Download and keep the application and fee receipt; track admit card and result on the RRB website.
| Category | Application Fee (tentative) |
|---|---|
| UR / OBC / EWS | Rs. 500 |
| SC / ST / PwBD / Women / Ex-Servicemen / Minorities | Rs. 250 (refundable to candidates appearing in CBT 1 as per previous norms) |
Fees are based on the previous RRB JE / SSE CEN and are tentative; confirm in the current CEN.
Salary / Pay Scale
| Post | 7th CPC Level | Basic Pay | Approx. In-hand (tentative) |
|---|---|---|---|
| Senior Section Engineer | Level 6 | Rs. 35,400 - Rs. 1,12,400 | Rs. 45,000 - Rs. 55,000 / month |
| Section Engineer | Level 6 (cadre) | Rs. 35,400 - Rs. 1,12,400 | Rs. 45,000 - Rs. 55,000 / month |
In addition, Railway staff receive DA, HRA, Transport Allowance, railway passes and medical facilities as per rules.
Official Links & PDFs
- Official RRB Website - rrb.indianrailways.gov.in - notifications, syllabus, admit cards and results of all RRBs.
- RRB Application Portal - rrbapply.gov.in - online application and status tracking.
- The detailed syllabus and post-wise matrix are published as a PDF inside each CEN. Download the current CEN PDF from the official RRB website when the notification is released.
Preparation Tips & Strategy
- Read the current CEN carefully for post-wise eligibility, fee and syllabus.
- CBT 1 is qualifying only - score comfortably above the cut-off and invest your main effort in CBT 2.
- Prepare engineering fundamentals thoroughly as Technical Abilities carry 100 of 150 marks in CBT 2.
- Practice the 1/3 negative marking rule; avoid blind guessing.
- Revise General Awareness and Science through monthly current affairs and NCERT Science notes.
- Solve previous year RRB JE / SSE papers and take timed mock tests.
- Keep degree, age proof, category certificate and Aadhaar ready for application and DV.
Frequently Asked Questions (FAQ)
Q: Who conducts the RRB SSE exam?
The Railway Recruitment Boards (RRBs) under the Ministry of Railways, through a Centralised Employment Notice (CEN).
Q: What is the difference between CBT 1 and CBT 2?
CBT 1 (100 marks) is qualifying and does not count in merit. CBT 2 (150 marks) includes Technical Abilities and its marks alone decide the final merit list.
Q: Is there negative marking?
Yes, 1/3 mark is deducted per wrong answer in both stages; unanswered questions are not penalised.
Q: What qualification is required?
A 4-year B.E. / B.Tech (or equivalent) in the relevant engineering discipline matching the post.
Q: Where do I apply?
Online through rrbapply.gov.in after the CEN is released.
Q: Is the pattern the same as RRB JE?
SSE and JE posts are usually notified under the same CEN, so pattern and dates match, but eligibility, medical standards and posts differ - always check the CEN.
Final Word
The RRB SSE / Section Engineer exam offers a stable railway career with good pay and allowances. Follow the official website rrb.indianrailways.gov.in and rrbapply.gov.in for the latest notification, syllabus, admit cards, cut-offs and results. Bookmark this page for updates on the RRB SSE exam.