RRB NTPC, Group D & ALP Photo and Signature Upload Rules: 20-50KB Size & Plain Background Guide

RRB Photograph Specifications

The Railway Recruitment Boards (RRB) conduct massive recruitments for NTPC (Non-Technical Popular Categories), Group D (Level 1), Assistant Loco Pilot (ALP), and Technicians.

• Dimensions: 35 mm × 45 mm (or 320 × 240 pixels to 350 × 450 pixels).
• File Size: Strictly between 20 KB and 50 KB in JPG/JPEG format.
• Background: Plain white or light-colored background. No colorful outdoor landscapes, trees, or wallpapers.
• Recency: Photo must be clicked within 6 months of notification date.

RRB Signature Requirements

• File Size: Between 10 KB and 40 KB (earlier 10-20 KB, expanded in recent notifications).
• Dimensions: 140 × 60 pixels.
• Color: Black or blue ink on plain white paper.
• Running Script: Signatures in capital or disjoined letters are rejected outright.

SC/ST Travel Authority Certificate Uploads

Candidates seeking free railway travel passes must upload a scanned copy of their SC/ST caste certificate in PDF format (50 KB to 500 KB). Use the SolveKits PDF Compressor if your scanned certificate exceeds 500 KB.

Why Thousands of Railway Applications Get Cancelled

In past RRB Group D cycles, over 4 lakh candidates were rejected due to invalid photos (wearing caps, dark goggles, group photos, or low-resolution scans). Always follow the front-facing, both-ears-visible standard.

How to Prepare Railway Exam Uploads

Choose the Railway RRB Preset in the SolveKits Exam Photo Resizer. It automatically locks 350 × 450 px at 35 KB, ensuring seamless acceptance on all RRB regional portals (RRB Allahabad, Mumbai, Chandigarh, Secunderabad, Patna, etc.).