DU CSAS 2026 Registration: Documents Checklist & Mistakes to Avoid

DU CSAS 2026 registration documents are what decide whether your Delhi University application sails through or stalls at verification. The University of Delhi conducts all undergraduate admissions through the Common Seat Allocation System (CSAS), based on your CUET UG 2026 scores. With the CSAS portal expected to open around June 2026 once the CUET exam concludes, getting your DU CSAS 2026 registration documents ready now — and knowing the mistakes that trip up thousands of applicants — gives you a real edge.

This checklist covers every document, the registration phases, and the common errors to avoid. Bookmark the official portal admission.uod.ac.in and read our deep-dive on Delhi University admission via CUET 2026 alongside this guide.

How DU CSAS works

CSAS is a single online platform through which DU administers UG admissions across its constituent colleges. Admission is granted in phases: candidates register and pay the fee, fill preferences (program-and-college combinations), and are then offered seats through allocation rounds based on CUET scores and preferences. Because everything runs online, having clean, correctly formatted documents ready makes each phase fast and stress-free.

DU CSAS 2026 documents checklist

• CUET UG 2026 application number and scorecard — your performance record used for allocation.
• Class 10 certificate/marksheet — for date of birth and qualifying details.
• Class 12 marksheet/certificate — subject marks and pass status.
• Valid government photo ID — Aadhaar, Passport or similar.
• Recent passport-size photograph and signature — within size/format limits.
• Category certificate — SC/ST/OBC-NCL/EWS in the prescribed format and validity, if applicable.
• PwD / quota certificates — for ECA, sports or supernumerary categories, with proofs.

Scan documents clearly within the portal’s file-size limits before you start, so uploads never block you mid-phase.

Step-by-step registration flow

1. Create your CSAS account on admission.uod.ac.in using your CUET credentials and email.
2. Fill the application with academic, category and personal details exactly as on documents.
3. Pay the registration fee as applicable to your category.
4. Fill preferences — list every program-college combination you would genuinely accept.
5. Lock and submit, then track allocation rounds and accept/upgrade as advised.

Common mistakes to avoid

• Name/DOB mismatch: Differences across CUET, Class 12 and ID can stall verification. Keep spellings identical.
• Too few preferences: A short preference list shrinks your seat chances. Add every acceptable combination — order matters.
• Wrong certificate format: Category and EWS certificates must follow the prescribed format and validity.
• Blurred or oversized uploads: Rejected scans delay you. Check clarity and file size first.
• Last-minute logins: Server rush near deadlines causes errors. Complete each phase early.

Plan your preferences with data

Preference order is strategy, not guesswork. Study previous CUET cutoffs and the full list of universities accepting CUET 2026 to build a realistic, ambitious-to-safe ladder of choices. If you are still deciding subjects-to-course fit, our CUET Subject Combination Advisor helps you map eligibility before you lock preferences.

Get CSAS-ready early

The candidates who win good seats are rarely the ones who scramble on deadline day — they are the ones whose documents, preferences and strategy were ready before the portal opened. Prepare your folder now, double-check every certificate, and you will move through CSAS calmly when DU goes live.

Practice Quiz

Frequently Asked Questions

What documents are needed for DU CSAS 2026 registration?

Keep your CUET UG 2026 application number and scorecard, Class 10 and Class 12 marksheets/certificates, a valid government photo ID (such as Aadhaar), a recent passport-size photograph and signature, and any category, EWS, PwD or quota certificates in the prescribed format. Verify the exact list on admission.uod.ac.in.

When does the DU CSAS 2026 portal open for UG registration?

The DU CSAS UG portal is expected to open around June 2026, after the CUET UG 2026 exam concludes, with admissions based on CUET scores. Check admission.uod.ac.in and your email for the official start and last dates.

What are common mistakes to avoid during DU CSAS registration?

Avoid name or date-of-birth mismatches across documents, filling too few program-college preferences, uploading blurred or oversized files, missing category-certificate formats, and logging in at the last minute. Complete each phase early and re-check every entry before final submission.

Is DU admission possible without CSAS?

No. All UG admissions to Delhi University’s constituent colleges are conducted exclusively through the CSAS portal based on CUET UG 2026 scores. There is no separate offline route for these seats.

Confused about preference order or eligibility? Book a free counselling session with CUET Gurukul. Verify all CSAS dates and document formats on admission.uod.ac.in.