RRB Photo Size 2026: NTPC, ALP, Group D Requirements

Last updated: July 2026

Railway Recruitment Board (RRB) exams draw some of the largest applicant pools of any government recruitment in India, and the photo specification under the CEN (Centralized Employment Notification) framework is unusually specific — not just about pixel size and file weight, but the background color too. This guide walks through the exact numbers for NTPC, ALP, Group D and JE, and why the white background rule is enforced so strictly.

RRB Photo and Signature Specification

What CEN Guidelines Actually Require

RRB releases most of its recruitment through Centralized Employment Notifications, commonly referred to as CEN, each covering a specific set of posts — for example, a CEN for NTPC, another for ALP and Technician, and another for Group D. While the notification number and post codes change with each cycle, the photo and signature specification across these CENs has stayed consistent at 350×450px for the photo and 500×200px for the signature. This consistency is genuinely useful for applicants, since a photo prepared for one RRB cycle can typically be reused for a future one without needing to look up a new specification, provided the current notification hasn't explicitly changed it.

Why the White Background Rule Is Non-Negotiable

Most exam bodies simply ask for a "light" or "plain" background, but RRB is explicit about white. This matters more for railway recruitment than most other exams because of the multi-stage verification process — a written exam, followed by document verification, and for several posts like Assistant Loco Pilot, a medical and physical efficiency test. Each of these stages involves comparing your photo against your physical appearance and other ID documents, and a consistent white background makes that comparison faster and less error-prone for verification staff handling large volumes of candidates. Photos with even a light grey, cream or patterned background have been flagged during scrutiny in past recruitment cycles, so it is worth treating "white" literally rather than "light-colored."

Getting the Aspect Ratio Right

One detail that trips up applicants coming from other exams is that RRB's photo is not square. At 350×450px, it follows a taller portrait ratio close to a standard passport photo, rather than the 1:1 square used by SSC or PAN card applications. If you take a square profile photo and simply stretch it into RRB's dimensions without adjusting the crop first, your face can look noticeably distorted. It's worth starting from a photo that already has some vertical headroom — a typical passport-style shot works well — rather than trying to force a square Aadhaar-style photo into the rectangular RRB frame.

Preparing Your ALP or NTPC Photo

Whether you are applying for NTPC, ALP, Group D or JE, the preparation steps are the same: photograph yourself or have someone photograph you against a plain white wall or a white bedsheet pinned up as a backdrop, in even daylight without harsh shadows. Keep your expression neutral and your face fully visible. Once you have a good source photo, it needs both resizing to 350×450px and compression into the 30KB–70KB band — most unedited phone photos will be well above 70KB before compression. If you're applying to multiple exam bodies in the same season, you may also want to prepare your SSC or IBPS photos from the same sitting, resizing each to its own specific requirement, or use our general image resizer if you need a custom pixel size not covered by a preset.

Frequently Asked Questions