CSAB 2026

CSAB 2026 Document Upload – Complete Guide

Full Document Checklist · File Format & Size Requirements · Upload Steps · Rejected Document Recovery

Complete CSAB 2026 Document Checklist

Upload the following documents during CSAB 2026 registration on csab.nic.in. Have all originals scanned and ready before you start the registration process — the portal does not allow partial saves in all cases.

Class 10 Certificate / Marksheet

PDF or JPEGMax 200 KB

Purpose: Proof of date of birth

Board certificate or marksheet showing your date of birth. CBSE board marksheet or any state board certificate is acceptable.

Class 12 Marksheet

PDF or JPEGMax 300 KB

Purpose: Proof of qualifying exam score (75%/65% requirement)

Must show subject-wise marks and aggregate/percentage. If results not yet declared, provisional marksheet accepted initially.

JEE Main 2026 Scorecard

PDFMax 300 KB

Purpose: Proof of JEE Main score and percentile

Download from jeemain.nta.nic.in. Shows NTA score, percentile, and qualifying status.

JEE Main 2026 Rank Card / Admit Card

PDF or JPEGMax 300 KB

Purpose: Proof of CRL rank and application number

The final rank card issued by NTA after result declaration. If rank card not separate, JEE Adv admit card or Mains admit card may be needed.

Allotment Letter (if any from JoSAA)

PDFMax 300 KB

Purpose: May be required to show JoSAA participation status

If you participated in JoSAA and withdrew, you may need to upload your JoSAA allotment letter and withdrawal acknowledgement.

Category Certificate (OBC-NCL / SC / ST / EWS)

PDF or JPEGMax 200 KB

Purpose: Proof of category for reservation

Must be in the format prescribed by Government of India/CSAB. OBC-NCL certificate must be issued in the current financial year. EWS certificate must be current.

PwD Certificate

PDF or JPEGMax 200 KB

Purpose: For PwD candidates — proof of disability

Certificate from a government hospital/competent medical authority. Only required for PwD candidates.

Domicile / Nativity Certificate

PDF or JPEGMax 300 KB

Purpose: For CSAB NEUT candidates from NE states/UTs

Certificate from District Collector / Revenue Officer. Required only for NEUT round candidates.

Passport-size Photograph

JPEG onlyMax 80 KB

Purpose: Identity and portal records

Recent coloured photograph (white/light background). Same photo standard as JEE Main registration.

Signature

JPEG onlyMax 30 KB

Purpose: Digital signature for records

Sign on plain white paper in blue/black ink and scan. Must be clearly visible.

File Format Requirements

Incorrectly formatted files are the most common cause of document rejections. Follow these specifications precisely:

Document Type	Format	Max Size	Resolution
Certificates & Marksheets	PDF or JPEG/JPG	200–500 KB	300 DPI recommended
Photograph	JPEG/JPG only	50–80 KB	200×230 pixels or similar
Signature	JPEG/JPG only	10–30 KB	150×60 pixels or similar
Category Certificate	PDF or JPEG/JPG	200–300 KB	300 DPI

Scanning Tips

• Scan in colour (not black-and-white) for category certificates and photographs
• Ensure all text is clearly legible — blurry scans are rejected
• Reduce PDF file size using online compressors if files are too large
• Do not scan pages at an angle — keep documents flat

Step-by-Step Upload Process

Navigate to the 'Document Upload' section on your candidate dashboard.

For each document type, click the 'Upload' button next to the field.

Select the file from your device. The portal will preview the uploaded file.

Verify the preview is clear, correctly oriented, and shows complete information.

If the preview is satisfactory, confirm/save the upload.

Repeat for all required documents. The portal shows a checkmark when each upload is completed.

Review the full upload checklist on the portal to ensure all required documents are uploaded.

Submit the registration form once all documents are uploaded.

Handling Rejected Documents

If a document is flagged as rejected after CSAB staff review, the portal will notify you and allow a re-upload window. Here is how to handle each common rejection reason:

Reason: Blurry or unreadable scan

Fix: Re-scan at higher DPI (300 DPI) with good lighting. Use a flatbed scanner if possible. Do not photograph documents with a phone camera in poor light.

Reason: Wrong document uploaded

Fix: Re-upload the correct document in the relevant field. Double-check that you are uploading Class 12 marksheet in the Class 12 field, not the Class 10 certificate.

Reason: File size too large

Fix: Use an online PDF compressor (like ilovepdf.com) or image resizer to reduce file size below the limit. Re-scan at lower DPI (200 DPI may be sufficient for most documents).

Reason: Category certificate expired or in wrong format

Fix: Obtain a fresh certificate from the issuing authority. OBC-NCL certificates must be from the current financial year. Ensure it is in the Central Government format (not just state format).

Reason: Photograph/signature not meeting specs

Fix: Photograph: ensure white background, full face visible, no glasses, no cap. Signature: sign on white paper in blue/black ink, scan clearly, no smudging.

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FAQs – CSAB 2026 Document Upload

Common questions about the CSAB 2026 document upload process

What documents are required for CSAB 2026 registration?

The key documents for CSAB 2026 are: Class 10 certificate (for date of birth), Class 12 marksheet, JEE Main 2026 scorecard, JEE Main rank card (or admit card), recent passport-size photograph, signature, category certificate (SC/ST/OBC-NCL/EWS), PwD certificate (if applicable), and domicile certificate (for NEUT round candidates).

What file format is required for document upload in CSAB 2026?

CSAB typically requires documents in PDF or JPEG/JPG format. Scanned documents should be in PDF (for certificates and marksheets) and JPEG (for photographs and signatures). The maximum file size is generally 200–500 KB per document. Always check the exact specifications in the CSAB 2026 official notification.

What happens if my uploaded document is rejected?

If a document is rejected, the CSAB portal will notify you and allow you to re-upload a corrected version. Common rejection reasons are: blurry scan, incorrect file format, file size too large, or incorrect document uploaded. Re-scan clearly and upload within the re-upload deadline.

Can I upload documents after the CSAB registration deadline?

No. Document upload is part of the registration process, and all documents must be uploaded before the registration window closes. Some documents may also be required again at the time of physical reporting to the institute (original + attested copies).

Do I need to upload all documents again for CSAB if I already did JoSAA?

Yes. CSAB is a separate portal (csab.nic.in) from JoSAA (josaa.nic.in) and requires independent registration and document upload. Your JoSAA documents are not automatically transferred to CSAB.

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CSAB 2026 Process

CSAB 2026 Complete Guide CSAB 2026 Registration Fee Payment Process Reporting at Institute NEUT Round Guide CSAB 2026 Eligibility

Documents Tip

Scan all documents in advance and save them in a dedicated folder before starting registration. Having files ready prevents the session timeout issue.

Disclaimer

Document requirements may vary. Always refer to the official CSAB 2026 notification at csab.nic.in for exact specifications.