DU CSAS Portal 2026 Registration Open: Direct Login Link, Important Dates & Admission Process

Published: 25 Jul 2026, 1:54 pm IST

The University of Delhi (DU) has officially opened the Common Seat Allocation System (CSAS) Portal 2026 for undergraduate admissions. Students who appeared for CUET UG 2026 can now complete their registration, fill in programme and college preferences, and participate in the centralised admission process.

The DU CSAS Portal serves as the official platform for admission into more than 70 undergraduate programmes offered across Delhi University’s constituent colleges. Admissions are based entirely on CUET UG scores, making it essential for candidates to complete every stage of the CSAS process accurately and within the prescribed deadlines.

If you’re planning to study at Delhi University this year, here’s everything you need to know about the DU CSAS Portal 2026, including the registration process, login details, important dates, required documents, and seat allocation procedure.

What Is the DU CSAS Portal?

The Common Seat Allocation System (CSAS) is Delhi University’s centralized online admission portal designed to streamline undergraduate admissions.

Instead of individual college applications, eligible candidates complete a single online registration through the CSAS portal. The university then allocates seats based on:

CUET UG 2026 score
Programme eligibility
Category (if applicable)
College preferences
Seat availability

This system makes the admission process more transparent and allows students to track every stage—from registration to final seat acceptance—through one dashboard.

DU CSAS Portal 2026 Registration

Candidates who have qualified for CUET UG 2026 can register by logging into the official Delhi University admission portal using their CUET credentials.

During registration, students are required to:

Verify personal details
Complete academic information
Upload necessary documents
Map CUET subjects with Class 12 subjects
Select programme and college preferences
Pay the registration fee

Only candidates who successfully complete registration will be considered for seat allocation rounds.

DU CSAS Portal 2026 Important Dates

Event	Schedule
CSAS Registration Begins	June 2026
Phase 2 Preference Filling	July 3, 2026
Registration Deadline	July 11, 2026
Correction Window	July 10–11, 2026
Simulated Rank Display	July 12, 2026
Preference Reordering	July 12–13, 2026
First Seat Allocation	July 16, 2026

Candidates should regularly monitor the official portal for updates or revised schedules.

How to Login to the DU CSAS Portal

Students can access the portal using the credentials created during the CUET registration process.

After logging in:

Verify personal information.
Complete profile details.
Upload required certificates.
Fill programme and college preferences.
Review the application carefully.
Submit the form.
Download the confirmation page for future reference.

It is advisable to double-check all entries before final submission, as corrections are only allowed during the designated correction window.

Documents Required for CSAS Registration

Before starting the application, keep the following documents ready:

CUET UG 2026 Application Number
Class 10 Marksheet
Class 12 Marksheet
Passport-size Photograph
Scanned Signature
Aadhaar Card or another valid ID
Category Certificate (if applicable)
EWS Certificate (if applicable)
PwBD Certificate (if applicable)
Sports/ECA Certificates (where applicable)

Keeping digital copies in the prescribed format can help avoid delays during registration.

Understanding the Three Phases of DU CSAS Portal

Delhi University conducts admissions through multiple phases.

Phase 1: Registration

Students complete their online application, upload documents, and pay the registration fee.

Phase 2: Preference Filling

This is one of the most important stages.

Applicants choose:

Preferred colleges
Preferred courses
Order of priority

Candidates can modify their preferences during the preference-edit window after simulated ranks are displayed.

Phase 3: Seat Allocation

Delhi University releases multiple allocation rounds.

Students can:

Accept the allotted seat
Upgrade in future rounds
Freeze their allotted seat

Once a seat is accepted, the concerned college verifies documents before candidates pay the admission fee to confirm enrollment.

How Is Seat Allocation Done?

The CSAS allocation process considers several factors simultaneously, including:

CUET normalized score
Eligibility criteria
Category and reservation policy
Programme preferences
College preferences
Seat availability

A higher CUET score generally improves admission prospects, but strategic preference filling can also significantly influence the outcome.

Common Mistakes Students Should Avoid

Many applicants lose valuable opportunities because of avoidable errors.

Some common mistakes include:

Choosing random college preferences without research
Uploading blurred or incorrect documents
Ignoring eligibility requirements
Missing the correction window
Forgetting to lock preferences
Not checking the admission dashboard regularly

Students should also avoid waiting until the last day to submit their application, as heavy traffic can slow down the portal.

Tips for Filling College Preferences

Admission experts recommend creating a balanced preference list.

Consider:

Dream colleges
Realistic options based on previous trends
Backup colleges
Preferred campus location
Course quality
Placement opportunities
Faculty reputation

Avoid filling only one or two colleges, as a broader list often increases admission chances.

Why the Simulated Rank Matters

The simulated rank is not your final admission result, but it provides an estimate of your standing before the actual allocation rounds.

Students can use this opportunity to:

Reorder programme preferences
Add more realistic options
Improve admission strategy

Many successful applicants adjust their preferences after reviewing their simulated rank.

What Happens After Seat Allotment?

Once Delhi University announces the allocation list, candidates must:

Accept the allotted seat within the deadline.
Wait for college-level document verification.
Pay the admission fee after verification.
Download the admission confirmation.

Those wishing to participate in later rounds may choose the Upgrade option instead of freezing their seat.

The DU CSAS Portal 2026 is the gateway to undergraduate admissions at one of India’s most sought-after universities. With registration now underway, students should complete every stage of the application process carefully, from profile creation and document upload to preference filling and seat acceptance.

Since admissions are entirely based on CUET UG 2026 scores, staying updated with official notifications, respecting deadlines, and making informed programme preferences can significantly improve your chances of securing a seat in your preferred college.

For the latest announcements, candidates should rely only on Delhi University’s official admission portal and regularly check their CSAS dashboard for updates on registration, simulated ranks, and seat allocation schedules.

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FAQs

Is DU CSAS registration open for 2026?
- Yes. Delhi University has opened the CSAS portal for eligible CUET UG 2026 candidates.
Who can apply through the CSAS Portal?
- Students who have appeared for CUET UG 2026 and meet the eligibility criteria for their chosen programme.
Can I edit my preferences after submission?
- Yes. Delhi University provides a preference correction and reordering window before seat allocation.
Is admission based only on CUET scores?
- Yes. DU UG admissions are conducted through the CSAS portal using CUET UG scores along with programme eligibility and reservation policies.
How many seat allocation rounds are conducted?
- Delhi University usually conducts multiple rounds of seat allocation depending on seat availability and admissions completed in previous rounds.