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Set to the RRB SC/ST certificate rules above
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Getting an SC/ST certificate PDF under 400 KB
RRB's Centralised Employment Notification 09/2025 asks SC/ST candidates who want the free railway travel pass to upload their SC/ST certificate as a PDF of less than 400 KB, legible and clear.
A certificate of one or two pages fits in 400 KB comfortably. We lower the resolution of the scan step by step and keep the first step that fits, so the text stays as readable as the limit allows.
Tips
- Scan the certificate flat and in good light, with the whole page in the frame.
- If your certificate is a photo, save it as a PDF first (most phones can print to PDF), then compress it here.
- The certificate must be the latest valid one as on the closing date of the application.
Requirements from RRB Centralised Employment Notification 09/2025, checked 26 September 2026. Forms change their rules, so check the form itself if something is rejected.
Questions
Do all SC/ST candidates upload a certificate on the RRB form?
Only SC and ST candidates who want the free railway travel pass upload it. The pass is a free sleeper class pass, given with your e-call letter for the CBT, PET, document verification and medical examination as applicable, based on the caste certificate details in your online application.
How do I use the RRB free travel pass on the train?
Your e-call letter contains the travel authority. Book the reservation by giving a self-attested photocopy of the e-call letter and your SC/ST certificate at the ticket counter. On the journey carry your original community certificate and an original proof of identity, or you are treated as travelling without a ticket.
Which SC/ST certificate format does RRB accept?
CEN 09/2025 gives the format of the caste certificate for SC/ST candidates in Annexure-I. For the upload it must be a PDF only. At document verification, certificates must be in English or Hindi, and others need a self-attested translation. Misuse of the free travel facility can lead to rejection of your candidature.