Railway RPF SI Exam Syllabus 2026: Complete Subject-Wise Guide for Sub Inspector and Constable — Plus What the Syllabus PDF Doesn’t Tell You.RPF Sub Inspector and Constable are two of the most sought-after railway jobs for one simple reason — you’re working within the Indian Railways system, you get railway travel passes, and the posting is typically in or near railway stations rather than remote border areas. For candidates choosing between RPF and other paramilitary forces, that location stability matters a lot. The 2024 cycle had 4,660 posts — 452 SI and 4,208 Constable — with the CBT happening in December 2024. If you’re preparing for the next RPF cycle, understanding the exact syllabus now gives you a clear head start.
Let me walk you through everything — subject by subject, stage by stage, with what actually matters in each section.
RPF SI & Constable 2024 Recruitment — Key Facts
| Detail | Information |
|---|---|
| Recruiting Body | Railway Protection Force (RPF) |
| Posts | Sub Inspector (SI) and Constable |
| Total Vacancies | 4,660 |
| SI Vacancies | 452 |
| Constable Vacancies | 4,208 |
| Application Period | 15 April – 14 May 2024 |
| CBT Exam Dates | 02, 03, 09, 12, 13 December 2024 |
| Age Limit — Constable | 18 to 28 years (as on 01 July 2024) |
| Age Limit — SI | 20 to 28 years (as on 01 July 2024) |
| Official Website | indianrailways.gov.in |
Two Posts, Two Different Eligibility Bars — Know Which One You Qualify For
This is where many candidates get confused — especially those who applied for both posts in the same cycle.
Constable: Class 10th pass from any recognised board in India. That’s the minimum. No degree required, no specific stream.
Sub Inspector: Graduation (Bachelor’s degree) from any recognised university in India. Any subject, any stream — but a full degree is mandatory. 10+2 alone doesn’t qualify you for SI.
The age bracket is the same for both — 18 to 28 for Constable and 20 to 28 for SI — calculated as on 01 July 2024 for the 2024 cycle. Age relaxation follows standard Railway rules: OBC gets 3 years, SC/ST gets 5 years, ex-servicemen get relaxation based on service period.
Here’s the thing — if you’re a graduate who applied for SI but didn’t clear, you almost certainly also qualified for Constable in the same cycle. The reverse isn’t true. Constable-eligible candidates without a degree cannot apply for SI. So graduates should target SI as their primary goal but always check Constable eligibility as a parallel option.
Application Fee — What You Paid (And What the Modification Charge Taught Everyone)
| Category | Fee |
|---|---|
| General / OBC / EWS | ₹500/- |
| SC / ST / PH | ₹250/- |
| Female (All Categories) | ₹250/- |
| Application Edit / Modification | ₹250/- |
The ₹250 modification charge is something that caught many candidates off guard in the 2024 cycle. RPF allowed a correction window from 15-24 May 2024, but corrections came at a cost. If you needed to fix your photo, change a detail, or correct an error — that was an additional ₹250 on top of your original fee.
For future RPF cycles — fill your application carefully the first time. Review every field before submitting. The modification charge is not a typo or an anomaly — it’s RPF’s standard policy for application corrections.
Complete RPF SI and Constable Exam Syllabus — Section by Section
RPF selection involves two CBT stages. Let me go through both with specifics on what’s actually tested.
CBT Stage 1 — Preliminary Screening
Stage 1 is typically a qualifying/screening round. The score may not count in the final merit (this varies by RPF cycle — confirm from the official notification for the specific cycle you’re targeting). The purpose is to reduce the candidate pool before Stage 2.
Topics covered in Stage 1 generally mirror Stage 2 but at a slightly lower difficulty level. It tests:
General Awareness, Arithmetic, and General Intelligence / Reasoning — covering broadly the same domains as Stage 2 but with shorter duration and fewer questions.
Most candidates who prepare properly for Stage 2 clear Stage 1 without separate preparation. Don’t treat them as equal effort investments — focus 80% of your study time on Stage 2 content.
CBT Stage 2 — The Main Written Exam
This is the stage that actually determines your merit rank. Three sections:
Section 1 — General Awareness
This is the highest-weightage section in RPF exams historically — and it’s the one that separates prepared candidates from those who just “studied hard.”
Static GK topics: Indian History — freedom movement, major events, key personalities. Indian Geography — rivers, mountains, states, capitals, national parks. Indian Polity — Constitution basics, fundamental rights, important Articles, Parliament structure. Economy — basic concepts, Five Year Plans, current economic policies. Science — Physics, Chemistry, Biology at Class 10 level. Sports — major tournaments, current champions, record holders. Books and Authors, Awards, Important Days.
Current Affairs: Events from approximately 6-8 months before the exam date. For the December 2024 exam, this meant April to November 2024 — government schemes, appointments, sports results, international summits, defence exercises.
Honestly, General Awareness is where the SI-level candidates pull ahead of Constable-level candidates — and it’s entirely because SI aspirants tend to read newspapers and follow current affairs more consistently. You don’t need expensive coaching for this section. A daily 20-minute habit of reading one reliable current affairs source is more effective than any crash course.
Section 2 — Arithmetic
Class 10 Mathematics — no higher. But the questions are timed, so speed matters as much as accuracy.
Key topics that appear most frequently in RPF papers: Number System and Simplification. Percentages, Profit and Loss, Discount. Ratio and Proportion, Averages. Simple and Compound Interest. Time and Work, Time and Distance, Speed calculations. Mensuration — Area, Volume, Perimeter. Basic Algebra — linear equations. Data Interpretation — tables and bar graphs (more common in SI than Constable level).
Pro Tip: Download the last three years of RPF CBT papers from sarkariresult or the official website. You’ll notice that certain arithmetic question types — particularly percentage-based profit/loss and time-distance — appear in almost every paper. Spend extra time mastering these recurring types before moving to less frequent topics.
For SI candidates specifically, Data Interpretation appears more regularly than in Constable papers. A table with 5-6 questions is common — practise reading and interpreting tables quickly, because each DI set is time-efficient once you understand the data.
Section 3 — General Intelligence and Reasoning
Both verbal and non-verbal reasoning appear. Topics include:
Analogies — verbal and figural. Series completion — number series and letter series. Classification — odd one out. Coding-Decoding. Blood Relations. Direction and Distance. Seating Arrangement. Syllogisms. Mirror Image and Paper Folding (non-verbal). Embedded Figures. Venn Diagrams. Statement and Conclusion.
For RPF SI, reasoning questions tend to be slightly more complex than Constable level — multi-step blood relations and seating arrangements appear more in SI papers. For Constable, the emphasis is on series, analogies, and coding-decoding.
Reasoning is the most “trainable” section — with consistent practice, most candidates can significantly improve their score in 6-8 weeks. Unlike GK which requires sustained learning over months, reasoning skill responds quickly to structured daily practice.
Physical Standards Test (PST) — Heights and Chest
| Category | Male Height | Female Height | Male Chest |
|---|---|---|---|
| General / OBC / SC | 165 cm | 157 cm | 80-85 cm |
| ST | 160 cm | 152 cm | 76-81 cm |
| For Hill Regions | 163 cm (Male) | 155 cm (Female) | 78-83 cm |
RPF’s height standard for male General category (165 cm) is slightly lower than SSC GD’s 170 cm requirement — which makes RPF more accessible for candidates who are physically fit but on the shorter side of average height.
The chest expansion requirement of 5 cm — from unexpanded to expanded — is the same principle as SSC GD. Start practising deep breathing and chest expansion exercises alongside your running training.
Physical Efficiency Test (PET) — Running and Other Events
The notification doesn’t detail PET standards in the summarised content available — but based on standard RPF PET requirements from the 2024 cycle official notification, male candidates typically need to run 1600 metres within a specified time, and female candidates have a shorter distance requirement. Check the official RPF notification PDF specifically for PET details — these are post-wise and category-wise, and I won’t publish figures I can’t confirm from the official source.
Watch out: RPF PET is held before PST in the selection sequence for most cycles. Failing PET means you don’t reach PST — regardless of your written score. Physical preparation cannot be an afterthought. Start running consistently from today if you’re targeting the next RPF cycle, not two weeks before the PET date.
Selection Process — The Four-Stage Sequence
| Stage | What Happens |
|---|---|
| 1. CBT Stage 1 | Preliminary screening |
| 2. CBT Stage 2 | Main written exam — determines merit rank |
| 3. PST & PET | Physical standards and efficiency |
| 4. Document Verification | Original certificates verified |
| 5. Medical Examination | Railway medical standards applied |
Final selection is based on CBT Stage 2 marks — PST and PET are qualifying gates. This is the same principle as SSC GD. Your written score is what determines your rank and force/zone allotment. Physical stages are binary — pass or fail.
Original Analysis: RPF SI vs. Other SI Posts — Is This Worth Targeting?
Let me give you an honest comparison that most syllabus articles skip entirely.
RPF Sub Inspector is a gazetted Group B post — not non-gazetted like most constable-level jobs. It’s a commissioned officer-level position within the Railway Protection Force, with supervisory responsibilities over Constable staff. The starting pay scale is higher than Constable, and the career progression path includes promotion to Inspector, Chief Inspector, and beyond.
Compared to SSB SI, CISF SI, or other paramilitary SI posts — RPF SI has the advantage of railway-specific posting, which typically means urban or semi-urban locations near railway infrastructure. For a candidate from Maharashtra or any state with major railway networks, RPF posting has a higher probability of staying within or near your home region compared to border-deployed forces.
The graduation requirement for SI is the filter that makes this competitive but not overwhelmingly so. A graduate with consistent GK preparation and decent arithmetic skills has a realistic shot at clearing CBT Stage 2. The difficulty level is not IAS or banking — it’s well within reach of a dedicated self-studying candidate.
Who Should Target RPF SI and Who Should Consider Constable
If you’re a graduate between 20-28 years, comfortable with current affairs, and want a gazetted railway government job with urban posting probability — RPF SI deserves serious focused preparation.
If you’re 10th pass or haven’t completed graduation yet — Constable is your target. 4,208 vacancies in the 2024 cycle is a large number, and the CBT difficulty at Constable level is manageable with 3-4 months of consistent preparation.
If you’re a graduate currently preparing for SSC CHSL or banking exams — your syllabus overlap with RPF SI is significant. GK, Reasoning, and Arithmetic are common to both. RPF SI can run as a parallel preparation target without starting from scratch.
If your age is 28 and you belong to General category — this is your last RPF cycle window (without relaxation). Don’t delay — the next notification, when it comes, needs your application from day one.
FAQ — What Candidates Are Actually Searching
Is the RPF SI CBT harder than SSC CGL or CHSL? No — RPF SI CBT is generally considered easier than SSC CGL and roughly comparable to SSC CHSL in difficulty level. The GK and Reasoning sections are similar. Arithmetic in RPF SI doesn’t reach the higher difficulty of SSC CGL Tier 2. If you’re already preparing for SSC, RPF SI is a manageable parallel target. The physical requirement is what makes RPF unique — SSC exams don’t have PET.
Can I apply for both SI and Constable in the same RPF recruitment cycle? In some RPF cycles, separate notifications are issued for SI and Constable, allowing eligible candidates to apply for both separately. In other cycles, they’re combined. This depends on the specific recruitment notification — check the official RPF notification carefully when the next cycle opens. If separate applications are required, you’ll pay the fee twice.
What is the salary for RPF Sub Inspector after joining? RPF Sub Inspector falls under Pay Level 6 of the 7th Pay Commission — starting basic pay of ₹35,400 per month. With DA, HRA (based on city classification), transport allowance, and railway-specific allowances, total in-hand for a new SI joiner in a city like Mumbai or Pune would typically range from ₹45,000-55,000 per month. RPF Constable is at Pay Level 3 — starting basic ₹21,700, with total in-hand around ₹28,000-35,000 depending on posting location.
What medical standard applies for RPF — can I join with spectacles? Railway medical standards for RPF are specific and non-negotiable. For SI, the vision standard typically requires distance vision of 6/9 in each eye with or without correction, within specified limits. Colour blindness is disqualifying. The exact medical standard is published in the official RPF notification — check it before investing months in preparation. A simple eye test at any optometrist can tell you your current vision level against these standards.
Important Links
| Purpose | Link |
|---|---|
| RPF / Indian Railways Official Website | indianrailways.gov.in |
| Download Exam Syllabus | indianrailways.gov.in — RPF Recruitment Section |
| Download Official Notification (SI) | indianrailways.gov.in |
| Download Official Notification (Constable) | indianrailways.gov.in |
| Check Application Status | RPF Recruitment Portal |