UPSC NDA / CDS Application Upload Limits (OTR Portal).
| Document | Format & Size |
|---|---|
| Photo ID Card (Aadhaar/Voter/Passport/PAN) | PDF, 20 KB – 300 KB |
| Educational Qualification Certificate | PDF, 20 KB – 300 KB |
| Category Certificate (SC/ST/OBC/EWS) | PDF, 20 KB – 300 KB |
Last verified: August 2026
UPSC One Time Registration (OTR) rules for NDA & CDS.
UPSC's application portal (upsconline.nic.in) handles NDA (National Defence Academy) and CDS (Combined Defence Services) exams.
All uploaded documents must be PDF format, un-password-protected, and strictly between 20 KB (minimum) and 300 KB (maximum).
Your files stay on your device.
Your defense application documents never leave your browser sandbox.
Frequently Asked Questions.
Uploaded PDF documents on upsconline.nic.in must be between 20 KB and 300 KB in file size.