Complete Official Guide: Railway RRB (ALP, NTPC, Technician, Group D) Photo and Signature Guidelines
Official Source: Railway Recruitment Boards Centralized Employment Notice
Last Updated: September 2026 (Verified against latest official notification)
When applying online for Railway RRB (ALP, NTPC, Technician, Group D), adhering strictly to the mandated photograph and digital signature guidelines is crucial. Every year, thousands of candidate applications are rejected or flagged due to improper file dimensions, excessive file size, or incorrect background contrast.
UtilityHub's Railway RRB (ALP, NTPC, Technician, Group D) Resizer comes pre-calibrated with verified pixel ratios (350x450 px) and file size targets (50 KB). Simply upload your image below to generate an officially compliant copy ready for instant submission.
Official Railway RRB (ALP, NTPC, Technician, Group D) Specification Table
| Specification | Photograph Requirement | Signature Requirement |
|---|---|---|
| Dimensions | 35 mm x 45 mm | 50 mm x 20 mm |
| Pixel Resolution | 350 x 450 pixels | 140 x 60 pixels |
| File Size (KB) | 30 KB to 70 KB | 30 KB to 70 KB |
| File Format | JPEG / JPG | JPEG / JPG |
| Background | Plain white background only | Plain white unruled paper |
Common Reasons for Railway RRB (ALP, NTPC, Technician, Group D) Application Rejection
- Dark or colored background (only pure white is accepted).
- Signature written in capital block letters.
- File size outside the mandated 30 KB to 70 KB range.
Step-by-Step Instructions
- Select Photo: Click the upload area above or drag and drop your existing photo into the tool.
- Automatic Preset Applied: The tool is pre-set with 350x450 px and 50 KB.
- Verify Preview: Inspect the live preview card on the right for sharpness and confirmed byte size.
- Download: Click Download and upload directly to Railway Recruitment Boards Centralized Employment Notice.