DU CSAS UG 2026 Document Checklist: Photo, Signature & Common Errors

Updated 23 May 2026 · By the Ready For Exam editorial desk · Helpline 7033005444

The Delhi University CSAS UG 2026 registration window opens this week on the official portal at admission.uod.ac.in and closes on 7 June 2026. The Common Seat Allocation System (CSAS) is the single gateway through which every CUET UG 2026 applicant must apply for an undergraduate seat at any DU constituent college — from St Stephen's to Sri Venkateswara, Kirori Mal to Lady Shri Ram.

Most candidates fail not at preference filling but at document upload. This is a clean, source-checked checklist of every file you must have ready before you open the portal, the exact size and format DU expects, and the common errors that cause registrations to be returned for correction.

The DU CSAS UG 2026 registration timeline at a glance

• Portal: admission.uod.ac.in (only this URL is official)
• Phase 1 — Registration: Opens third week of May 2026; deadline 7 June 2026
• Phase 2 — Preference filling: Begins after CUET UG result declaration (first week of July, tentatively)
• Phase 3 — Seat allocation: Multiple rounds; typically July–August
• Registration fee: ₹250 (General/OBC/EWS) · ₹100 (SC/ST/PwBD) · online only via UPI/card/net banking

The complete DU CSAS UG 2026 document checklist

Have all of the following before you log in. Mid-registration document hunts are the single biggest reason candidates miss the cleanest application window.

1. CUET UG 2026 reference

• CUET UG 2026 application number (12-digit reference)
• CUET UG 2026 password/date of birth for portal login
• CUET UG 2026 admit card PDF (download a fresh copy in case the portal asks)

Why this matters: name, photograph, and signature auto-populate on CSAS from your CUET application. They are non-editable. If your CUET name has a typo, you cannot correct it on CSAS — it has to be fixed via NTA's correction window first.

2. Academic documents

• Class 10 marksheet — PDF, <1 MB, clean scan
• Class 12 marksheet (if result is declared) or Class 12 admit card / school certificate if result is pending
• For non-CBSE boards: a board-issued grading scale / conversion key if your scoring is non-percentage

3. Identity proof

• One government-issued photo ID: Aadhaar (preferred), Passport, PAN, or Driving Licence
• PDF or JPEG, <1 MB, both sides visible

4. Category and special-category certificates (if applicable)

• OBC-NCL: Issued by competent authority, dated within the current financial year. An older OBC certificate (more than one year) is the single most common rejection cause.
• SC / ST: Caste certificate by competent authority. Name must match Class 10/12.
• EWS: Income & Assets certificate, also within current financial year.
• PwBD: Disability certificate – 40%+ benchmark, with UDID number if available.
• CW (Children/Widow of Armed Forces): Service certificate + priority-category undertaking.
• KM (Kashmiri Migrant): Migrant certificate by relevant state authority.

5. Supernumerary quota documents (only if applicable)

• Sports quota (ECA-Sports): Sports certificates from the past three years — original + scanned. DU maintains a graded list; only certificates from listed authorities count.
• ECA (Extra-Curricular Activities) quota: Three-year activity certificates — debating, NCC, NSS, dance, music, theatre etc.
• Sikh Minority (Mata Sundri / SGTB Khalsa): Sikh Minority Certificate signed by gazetted officer.

6. Auto-pulled CUET assets (verify on screen, do not re-upload)

• Passport-size photograph (same as the one uploaded with CUET application)
• Scanned signature on white background
• Full name exactly as on CUET

Document specifications DU expects

Seven common errors that cause your CSAS registration to bounce

1. Name mismatch. The slightest variation between Class 12 marksheet and CUET application (a missing middle initial, a different transliteration) triggers a manual review. Fix this in the CUET correction window before CSAS registration if possible.
2. Old category certificate. OBC-NCL and EWS must be from the current financial year. An OBC issued in 2024 is treated as expired in 2026.
3. Wrong nationality field. CSAS defaults "Indian" for most fields but candidates with PIO/OCI/Foreign National status must declare correctly — the seat pool is different.
4. Wrong category code. EWS is not OBC. SC is not ST. The portal does not auto-correct, and the wrong code can make you ineligible for the seat pool you actually qualify for.
5. Photograph mismatch. Because CSAS pulls the CUET photo, you cannot upload a different one. If your CUET photo was unclear, plan for a verification flag at the college level.
6. Sports/ECA certificates not in the DU-graded list. Only certificates from authorities DU recognises score points. Random school certificates are worth zero.
7. Skipping the "Save and Submit" final step. The portal saves drafts but only submits on the final acknowledgement page. A draft does not count as a registered application.

Step-by-step on registration day

1. Visit admission.uod.ac.in. Confirm the URL exactly — phishing sites use lookalike domains.
2. Click New Registration. Enter CUET UG 2026 application number and password/DOB.
3. Verify auto-populated name, photograph, and signature on the first screen.
4. Fill personal, academic and category details. Save after every page.
5. Upload PDF documents one by one. Open each uploaded PDF on screen to confirm legibility.
6. Review the preview screen carefully.
7. Pay the fee online. Save the payment receipt PDF.
8. Submit. Download the final registration acknowledgement.

Once seat allocation begins (after CUET UG results), you will return to the same portal to fill programme + college preferences. Treat preference order as decisive: DU uses the first allocatable preference, not your highest. We wrote about preference strategy in our DU PG CSAS guide — the UG portal mirrors the same logic.

Where to spend your time between 23 May and CSAS opening day

• Make a folder titled DU-CSAS-2026 on your laptop. Put every document above into that folder today.
• Re-scan any marksheet whose PDF is >1 MB. A good rule of thumb: 300 DPI grayscale.
• If your category certificate is dated before 1 April 2026, start the renewal process at your local SDM office now.
• Confirm your CUET application name exactly matches your Class 12 marksheet. If not, fix it via the NTA correction window before that closes.

Useful internal reading while you prepare

• DU CSAS PG 2026 registration walkthrough
• DU UG CSAS 2026 — what to prepare while you wait for CUET results
• How CUET UG 2026 normalisation and percentile work
• CUET subject-mapping mistakes that reject DU applications

FAQ

What is the registration fee for DU CSAS UG 2026?

₹250 for General, OBC and EWS candidates; ₹100 for SC, ST and PwBD candidates. Fees are accepted only online via UPI, debit/credit card or net banking.

Can I edit my name or photograph on the DU CSAS portal?

No. Name, photograph and signature are pulled directly from your CUET UG 2026 application and are non-editable on CSAS. Any correction must happen via the NTA correction window before CSAS submission.

When does DU CSAS UG 2026 registration close?

The current deadline is 7 June 2026. Always re-verify on admission.uod.ac.in because DU sometimes extends the deadline by a few days.

Do I need my Class 12 result before registering?

No. Registration (Phase 1) can be completed even before Class 12 results are out. Programme/college preference filling (Phase 2) begins only after CUET UG results.

Talk to the Ready For Exam desk

If you want a free 15-minute walkthrough of your DU CSAS UG 2026 document folder before you click submit, call the CUET Gurukul helpline 7033005444. We answer 9 AM–9 PM, including weekends.