RRBs will hold the first-stage CBT for Junior Engineer, Depot Material Superintendent and Chemical & Metallurgical Assistant (CEN 04/2026) on 27 and 28 October 2026, as revised on 2 October. The exam city slip has been live since 17 October; the e-call letter opens about 4 days before your exam date.
The Railway Recruitment Boards will hold the first-stage Computer Based Test (CBT-I) under CEN 04/2026 on 27 and 28 October 2026. This CEN covers various Junior Engineer posts, Depot Material Superintendent (DMS) and Chemical & Metallurgical Assistant (CMA). The dates come from the RRB notice of 2 October 2026, which revised the earlier schedule of 16 September (27, 28 and 30 October); 30 October is no longer an exam date. RRB calls the dates tentative.
The Exam City & Date intimation link, with the SC/ST Travel Authority, is live on the official RRB websites (RRB notice of 17 October 2026). The e-call letter opens about 4 days before the exam date shown on your intimation: around 23 October for 27 October candidates and around 24 October for 28 October candidates. RRB helpdesk: 9513166371, Monday to Saturday, 9 am to 6 pm.
| Event | Date |
|---|---|
| First CBT-I schedule notice | 16 September 2026 (since revised) |
| Revised CBT-I schedule notice | 2 October 2026 |
| Exam City & Date intimation, SC/ST Travel Authority | Live since 17 October 2026 |
| e-Call letter download | About 4 days before your exam date |
| CBT-I | 27 & 28 October 2026 |
| Subject | Questions | Marks |
|---|---|---|
| Mathematics | 30 | 30 |
| General Intelligence & Reasoning | 25 | 25 |
| General Awareness | 15 | 15 |
| General Science (up to Class 10 CBSE level) | 30 | 30 |
| Total | 100 | 100 |
You get 90 minutes, or 120 minutes if you are eligible for a scribe. One-third of a mark is deducted for each wrong answer. CBT-I is common to all posts under this CEN and is a screening stage. Your normalised score is used only to shortlist candidates for the second-stage CBT. The minimum marks to be eligible are 40% for UR and EWS, 30% for OBC (NCL) and SC, and 25% for ST.
| Exam date | 27 & 28 October 2026 |
|---|
Open your RRB’s official website
Use rrb.indianrailways.gov.in and pick the RRB you applied to. RRBs publish all links only on their official websites.
Check your exam city and date first
Open the Exam City & Date intimation link for CEN 04/2026 (live since 17 October 2026). SC/ST candidates download their Travel Authority from the same link.
Download the e-call letter
The e-call letter link opens about 4 days before the exam date shown in your city intimation. Log in with the details you used to apply.
Check and print
Check your name, photograph, exam date, shift, reporting time and venue. Print the e-call letter and carry it with your Aadhaar.
CBT-I for CEN 04/2026 is scheduled on 27 and 28 October 2026, according to RRB’s revised notice of 2 October 2026.
No. The first schedule of 16 September 2026 listed 27, 28 and 30 October, but RRB’s revised schedule of 2 October 2026 lists only 27 and 28 October.
The exam city slip has been live since 17 October 2026. E-call letters open about 4 days before your exam date: around 23 October for 27 October candidates and around 24 October for 28 October candidates.
Various Junior Engineer posts, Depot Material Superintendent and Chemical & Metallurgical Assistant under CEN 04/2026.
100 questions in 90 minutes: Mathematics (30), General Intelligence & Reasoning (25), General Awareness (15) and General Science (30). One-third of a mark is deducted for each wrong answer.
