DU CSAS 2026 login problems — OTP not received, forgotten password, or a lost application number — can all be resolved through the official portal using the step-by-step fixes listed below.
Delhi University’s Common Seat Allocation System (CSAS) 2026 is the central portal for undergraduate admissions based on CUET UG 2026 scores. Login errors are most frequent in the first few days of registration when server traffic is highest. Whether you are stuck on OTP delivery, locked out of your account, or cannot recall your application number, this guide addresses every scenario with tested solutions.
- Your login ID is your CUET UG 2026 Application Number — there is no separate CSAS registration number.
- OTP delays of up to 10 minutes are normal on peak registration days — wait before clicking Resend OTP.
- Password reset is done via the Forgot Password link using your registered email ID.
- Application number recovery is available on the CUET portal at cuet.nta.nic.in using your registered email and Date of Birth.
- Always use Google Chrome or Mozilla Firefox in incognito mode for the best experience on the CSAS portal.
| Direct Link to DU CSAS 2026 Official Portal (ACTIVE) |
How to Login to DU CSAS 2026
The CSAS 2026 portal uses your CUET UG 2026 credentials for access. Before troubleshooting, confirm you have your application number and are on the correct portal. Follow these steps:
- Open the official DU CSAS 2026 portal at admission.uod.ac.in.
- Click the "CSAS 2026 Applicant Login" button on the homepage.
- Enter your CUET UG 2026 Application Number in the login field.
- Enter your Date of Birth in DD/MM/YYYY format or your registered password.
- Complete the CAPTCHA verification shown on screen.
- Click "Submit" to access your CSAS 2026 dashboard.
| Detail | Information |
|---|---|
| Portal Name | DU CSAS 2026 — Common Seat Allocation System |
| Official URL | admission.uod.ac.in |
| Login ID | CUET UG 2026 Application Number |
| Authentication | Date of Birth (DD/MM/YYYY) or registered password |
| OTP sent to | Registered mobile number and email ID |
| CUET portal (number recovery) | cuet.nta.nic.in |
OTP Not Received on DU CSAS 2026: Reasons and Fixes
OTP not received on mobile or email is the most frequently reported DU CSAS 2026 login issue, particularly on the first day of registration when server load is at its peak. The table below maps every likely cause to its solution:
| Reason for OTP Failure | Fix |
|---|---|
| Server overload on peak registration days | Wait 10–15 minutes then click Resend OTP |
| OTP email routed to spam or Promotions tab | Check Spam, Promotions and All Mail folders in your inbox |
| Do Not Disturb (DND) active on mobile number | Disable DND via your carrier app or SMS portal; switch to email OTP instead |
| Incorrect mobile number registered during CUET | Use the email OTP option; contact NTA helpdesk to update your registered number |
| Network or carrier delay | Toggle between Wi-Fi and mobile data; retry after 5 minutes |
| OTP expired before you entered it | Refresh the page and request a fresh OTP immediately |
If OTP still does not arrive after multiple attempts across both SMS and email, visit the official portal and use the helpdesk or grievance link to raise a complaint. Keep your CUET Application Number and registered mobile number ready when you contact support.
How to Reset Your DU CSAS 2026 Password
If you have forgotten your CSAS 2026 password, follow these steps to reset it in minutes through the official portal:
- Go to the DU CSAS 2026 login page at admission.uod.ac.in.
- Click "Forgot Password" below the login fields.
- Enter your CUET 2026 Application Number and registered email ID.
- A password reset link will be sent to your email within 2–5 minutes.
- Open the email, click the reset link, and create a new password.
- Return to the login page and log in with your updated credentials.
Your new password must be 8–16 characters and should include at least one uppercase letter, one number, and one special character. If the reset email does not arrive within 5 minutes, check your spam and Promotions folders. Some portals also offer a mobile OTP-based reset option as an alternative.
How to Recover Your DU CSAS 2026 Application Number
Your DU CSAS 2026 login ID is your CUET UG 2026 Application Number — no separate CSAS registration number exists. If you have lost it, retrieve it from the NTA CUET portal using these steps:
- Visit cuet.nta.nic.in — the official NTA CUET portal.
- Click "Login" on the homepage and select "Forgot Application Number".
- Enter your registered email ID and Date of Birth.
- Your CUET Application Number will be sent to your registered email address.
- Use this number to log into the DU CSAS 2026 portal at admission.uod.ac.in.
You can also locate your CUET Application Number on your CUET 2026 admit card, your CUET registration confirmation email, or your printed CUET scorecard. Save it in a secure note or screenshot, as you will need it at every stage of the DU admission process.
Other Common DU CSAS 2026 Login Issues and Solutions
Beyond OTP and password problems, several other errors appear on the CSAS 2026 portal during high-traffic periods. Here are the most frequently reported issues with quick fixes:
| Issue | Likely Cause | Solution |
|---|---|---|
| Login page not loading | Server congestion or stale browser cache | Clear cache and cookies; open a fresh incognito window in Chrome or Firefox |
| "Invalid credentials" error | Caps Lock on or wrong DOB format | Enter DOB as DD/MM/YYYY; turn off Caps Lock; copy-paste your application number to avoid typos |
| Account locked after failed attempts | Too many incorrect login attempts | Wait 30 minutes and retry; use Forgot Password to reset credentials and unlock the account immediately |
| CAPTCHA not loading or invisible | Browser extension blocking scripts | Disable ad-blockers and script-blocking extensions; reload the page; switch browsers |
| Dashboard appears blank after login | Slow connection or JavaScript error in browser | Use a stable broadband connection; avoid mobile browsers for form filling |
| Session timeout mid-application | Extended inactivity on the portal | Save progress at every step; do not leave the tab idle for more than 15 minutes |
For issues that remain unresolved after applying the above fixes, use the helpdesk or grievance section on the official DU CSAS portal at admission.uod.ac.in. Note the exact error message and screenshot it before contacting support — this speeds up resolution significantly.
DU CSAS 2026 Login FAQs
Ques. What is the login ID for DU CSAS 2026?
Ans. Your DU CSAS 2026 login ID is your CUET UG 2026 Application Number. There is no separate CSAS registration number — the same application number generated during CUET 2026 registration is used to access the CSAS portal at admission.uod.ac.in.
Ques. I have not received an OTP on my mobile for DU CSAS 2026 login. What should I do?
Ans. First, check if Do Not Disturb (DND) is active on your number and disable it. Wait 10–15 minutes and click Resend OTP. If the SMS OTP still does not arrive, switch to the email OTP option. For continued failure, contact the NTA/DU helpdesk via the official portal with your application number.
Ques. How do I find or recover my DU CSAS 2026 application number?
Ans. Your CSAS application number is your CUET UG 2026 Application Number. To recover it, visit cuet.nta.nic.in and choose Forgot Application Number. Enter your registered email ID and Date of Birth and the number will be sent to your email. You can also find it on your CUET admit card or registration confirmation email.
Ques. How do I reset my forgotten DU CSAS 2026 password?
Ans. On the CSAS login page at admission.uod.ac.in, click Forgot Password. Enter your CUET Application Number and registered email ID. A reset link will arrive in your inbox within 2–5 minutes. Click the link and set a new password to regain instant access.
Ques. Which browser is recommended for the DU CSAS 2026 portal?
Ans. Google Chrome or Mozilla Firefox in incognito mode is recommended. Disable ad-blockers and script-blocking extensions to ensure CAPTCHA and OTP features load correctly. Avoid Internet Explorer and older mobile browsers when completing your CSAS application.
Ques. My DU CSAS 2026 account is locked after too many failed login attempts. How do I unlock it?
Ans. Account lockouts occur after multiple incorrect password entries. You can wait 30 minutes for automatic unlocking or use the Forgot Password option to reset your credentials immediately — this unlocks the account without any waiting period.
Comments