DU CSAS 2026 Portal Guide: Registration, Phases & Top-College Strategy

The Common Seat Allocation System (CSAS) is the single gateway for admission to all Delhi University undergraduate programmes (except SOL, NCWEB, and Foreign Nationals). With CUET UG 2026 results expected in the first week of July, the CSAS portal — hosted at admission.uod.ac.in — will open within days of the result declaration. This guide explains the three CSAS phases, the documents you need, and the preference-filling strategy that maximises your shot at colleges like SRCC, Hindu, Miranda House, LSR, and St. Stephen’s.

What Is CSAS and Why It Matters

CSAS replaced the older merit-list system in 2022. It is a centralised, transparent platform where every aspirant applies once to DU and ranks their college-course preferences. Seats are then allotted via an algorithmic match of CUET percentile + preference order + reservation rules.

The system removes the multiple-form chaos of pre-2022 admissions and means your preference order is as important as your CUET score.

CSAS 2026 Tentative Timeline

• Phase 1 — Registration: Opens within 7 days of CUET UG result (early-to-mid July 2026)
• Phase 2 — Programme & college preference filling: After CUET result is uploaded
• Phase 3 — Seat allocation & spot rounds: Late July to August 2026

Final dates are published on admission.uod.ac.in. Bookmark the page now.

Phase 1: Registration

You will need:

• CUET 2026 application number and password
• Class 10 and Class 12 marksheets
• Category certificate (if applicable)
• EWS / PwBD / Kashmiri Migrant supporting documents
• Passport-size photo and signature
• Valid email + mobile number
• Application fee: Rs 250 (UR/OBC-NCL/EWS) or Rs 100 (SC/ST/PwBD)

Once registered, you will receive a CSAS Application Number — note it down. All future logins and grievance redressal use this number.

Phase 2: Preference Filling — The Most Critical Step

This is where most aspirants lose seats they could have won. DU offers ~80 UG programmes across ~70 colleges, generating 1,500+ college-course combinations. CSAS asks you to rank them in order of preference.

Three Golden Rules

1. Rank by genuine preference, not “safety.” The algorithm tries to allot your highest unfilled preference. If you list a “safe” college first, you may get stuck there even if your CUET score qualifies for a higher choice.
2. Add depth, not breadth. Aim for 40–60 ranked preferences minimum. Candidates with 10–15 preferences often go unallocated in Round 1.
3. Mix high-cutoff and moderate-cutoff combinations. Use last year’s closing percentile as a rough guide.

Use the Programme + College Matrix

Read our deep-dive on DU’s top 50 colleges and last-year cutoffs to build your preference sheet offline before the portal opens.

Phase 3: Seat Allocation, Upgrade & Withdraw

After preference filling closes, DU runs Round 1 allocation. You will get one of three statuses:

• Allotted: You must “Accept” within the window; then complete document verification and fee payment, or you forfeit the seat.
• Upgrade option: Accept the current allotment AND opt for upgrade. If a higher-preference seat opens in Round 2, you move up automatically.
• Not allotted: Wait for Round 2/3 or spot round. Do not panic — many high-cutoff colleges open up only in Round 2.

Expected CUET Cutoffs for Top DU Colleges (2026)

Based on 2024–25 closing percentiles, expected ranges for General category:

• SRCC B.Com (Hons): 99.8 – 100 percentile
• Hindu College Economics (Hons): 99.5 – 99.9
• Miranda House Political Science (Hons): 99.0 – 99.7
• LSR Psychology (Hons): 98.5 – 99.4
• St. Stephen’s BA Programme (subject to internal interview weighting): Top 2–3% in CUET

These are expected figures; final cutoffs are released only after Round 1 allocation. Reservation category cutoffs are 5–15 percentile points lower.

Common Mistakes That Cost Seats

• Filling fewer than 30 preferences (huge unallotted risk)
• Skipping the “Upgrade” option after allotment
• Missing the Accept window because of poor email checking
• Uploading low-quality scanned documents that get rejected at verification
• Trusting unofficial cutoff predictors over DU’s own published data

What to Do This Week

1. Bookmark admission.uod.ac.in
2. Scan all your documents at 200 DPI and store in one folder
3. Read our CSAS preference builder tool
4. Watch for the official CSAS Bulletin of Information PDF release

FAQs

When will the DU CSAS 2026 portal open?

Within 7 days of the CUET UG 2026 result, expected early-to-mid July 2026.

What is the CSAS application fee?

Rs 250 for General/OBC-NCL/EWS; Rs 100 for SC/ST/PwBD candidates.

Can I edit my preferences after submission?

Yes, during the active preference-filling window. Once closed, no edits are allowed.

What is the upgrade option in CSAS?

It lets you accept the current allotted seat while remaining eligible for a higher preference in subsequent rounds.

Do I need to apply separately to St. Stephen’s or Jesus and Mary College?

Minority-quota seats may have an additional college-specific process; CUET + CSAS remain mandatory for non-minority seats.

Sources: admission.uod.ac.in, DU UG Bulletin of Information 2026-27.