In this guide
All RRB Group D posts are at Level 1 of the 7th Pay Commission pay matrix, so the starting pay is the same. The work is not. One post has you walking the track in the monsoon; another has you in a workshop with a senior technician; a third has you at a station through the night.
When you apply, you rank the posts in order of preference. That list decides where your railway life begins. It is worth an hour of careful thought.
The main families of posts
| Family | Posts (examples) | Work |
|---|---|---|
| Track (engineering) | Track Maintainer Grade IV | Patrolling and maintaining the railway track |
| Operating (Traffic) | Pointsman-B | Working points, shunting and hand signals at stations and yards |
| Mechanical | Assistant (Carriage & Wagon), Assistant (Workshop), Assistant Loco Shed (Diesel) | Helping technicians inspect and repair coaches, wagons and locomotives |
| Electrical | Assistant (TRD), Assistant Operations (Electrical), Assistant (TL & AC), Assistant Loco Shed (Electrical) | Overhead power lines, train lighting and air-conditioning, electric locomotives |
| Signal & Telecom | Assistant (S&T) | Signals, points machines and communication equipment |
| Civil works | Assistant (Bridge), Assistant (P-Way), Assistant (Track Machine) | Bridges, track work and heavy track machines |
Track Maintainer Grade IV is usually the biggest single post in the vacancy table. That is why so many selected candidates start there.
Medical categories: the first filter
Every post carries a medical category. The category mostly decides the eyesight you need. As reported from recent notices:
| Category | Distance vision (as reported) | Posts (examples) |
|---|---|---|
| A-2 | 6/9 and 6/9, without glasses | Pointsman-B |
| A-3 | 6/9 and 6/9, with or without glasses (limit on lens power) | Assistant (Track Machine) |
| B-1 | 6/9 and 6/12, with or without glasses (power up to 4D) | Track Maintainer Grade IV, Assistant (C&W), (S&T), (TRD), (TL & AC), Loco Shed, Bridge, Operations (Electrical) |
| C-1 | 6/12 and 6/18, with or without glasses | Assistant (Workshop), Assistant TL & AC (Workshop) |
The two numbers are for the better eye and the worse eye. The medical board also tests colour vision, binocular vision and night vision as each category requires, and safety posts are the strictest.
What the work feels like
| Post type | Place | Hours | Physical demand |
|---|---|---|---|
| Track Maintainer | Outdoors, along the line | Day work, plus duty in emergencies and bad weather | Very high |
| Pointsman | Stations and yards | Rotating shifts, including nights | Moderate to high |
| Workshop / shed assistant | Indoors, in sheds and workshops | Mostly regular shifts | Moderate |
| Electrical / S&T assistant | Mix of field and depot | Shifts and call-outs | Moderate |
Read the separate guides on life as a Track Maintainer, the Pointsman job and workshop and technical assistant jobs for the day-to-day detail.
Why the department matters later
Your department shapes your career:
- In workshops and sheds, assistants who learn the trade can move towards technician posts through departmental promotion and selection.
- Track Maintainers rise through higher grades of their own cadre.
- Pointsmen learn station working, which helps on the operating side.
Promotion rules vary by department and zone. If you can, ask a serving employee in the zone you want.
A worked example: ranking posts
Suppose a candidate is an ITI electrician, wears glasses of about −1.5D, and wants to stay near a town.
- Remove what the body rules out. Pointsman-B (A-2, no glasses) goes. Assistant (Track Machine) in A-3 needs a check of the lens-power limit in the notice.
- Put the trade first. Assistant (TRD), Assistant (TL & AC), Assistant Loco Shed (Electrical) and Assistant Operations (Electrical) use the ITI skills. These go at the top.
- Then the "would still join" posts. Assistant (C&W), Assistant (Workshop) and Assistant (S&T) come next.
- Decide honestly about track work. Track Maintainer has the most vacancies. If the candidate would genuinely join, it goes lower in the list. If not, it stays off.
The result is a list built on fitness, skill and honesty, not on guesswork.
Check your understanding
- Which medical category is the Pointsman-B post in? A-2, as reported.
- What does TRD stand for? Traction Distribution, the overhead power line system.
- Is the starting basic pay different for a Track Maintainer and a workshop Assistant? No. Both are Level 1.
- Name one post that suits an ITI fitter. Assistant (Workshop) or Assistant (C&W).
- Why should a candidate with weak colour vision be careful? Colour vision is tested, and safety posts such as Pointsman depend on reading signals.
What to do next
- Write every post from your CEN in a list with its medical category.
- Get your eyes tested, including colour vision, before you fill the form.
- Mark each post "yes", "maybe" or "no". List the "yes" posts first, then "maybe". Leave out "no".
- Check your age and documents against the eligibility section of the CEN.
A note on dates and numbers. Exam patterns, vacancies and schedules change from year to year. Always confirm the current details in the latest notification on the Railway Recruitment Boards website .
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