With over 13-14 lakh candidates expected to be registered by November 27th for Session 1 alone, JEE Main 2026 is set to break records. But here's the problem: a single spelling mistake, wrong upload, or incomplete detail can create several problems and ultimately cause rejection. The good news? The correction window opens December 1-2, 2025, giving students a final chance to fix their errors
According to reports from NTA, most of the students face issues every year due to blurred photos, incorrect documents, or wrong mobile numbers. Even small mistakes during document verification can disqualify candidates from JoSAA counselling for admission to IITs, NITs, and IIITs.
Check:
- JEE Main 2026: Change Exam City, Category or Photo in Form Correction? New Rules, Fees & Login Process
- JEE Mains Form Fill Up Date 2026 Live Updates: Registration Begins, Deadline, New Rules, Exam Schedule
Here are the top 10 mistakes students make and how to avoid them during the correction window.
Top 10 Common Mistakes in Form & How to Fix in the Correction Window
Mistake #1: Outdated or Mismatched Documents
| Common Issue | Impact | Solution |
|---|---|---|
| Name mismatch between Aadhaar and Class 10 certificate | Form rejection or verification failure | Update Aadhaar before registration; ensure exact match with Class 10 marksheet |
| Using old or expired category certificates | Invalid application during verification | Get fresh EWS/OBC-NCL certificates issued after April 2026 for JoSAA |
| Pending biometric updates in Aadhaar | Registration complications | Complete Aadhaar updates well before registration deadline |
Fix during correction: All identification details must match your 10th-grade marksheet only, not your Aadhaar card. Students have reported issues where their Aadhaar had middle names not present on their Class 10 certificates. The NTA has clarified that minor differences won't cause problems, but it's safer to match the Class 10 document exactly.
Also read: JEE Main 2026 Form Correction Dates Out, Direct Link, Fee, Document Upload Guidelines
Mistake #2: Typing Errors in Personal Information
| Common Mistake | Where It Happens | Correction Available? |
|---|---|---|
| Misspelt candidate/parent names | Name fields | Yes, during the correction window (only ONE name can be changed) |
| Wrong date of birth | DOB field | Limited editability |
| Incorrect gender selection | Gender dropdown | Can be corrected |
Fix during correction: Type each personal detail exactly as it appears on your Class 10 certificate, double-checking spelling and capitalisation. You can change your name, your father's name, or your mother's name, but only one can be modified.
Mistake #3: Invalid Contact Details
| Problem | Consequence | Prevention |
|---|---|---|
| Using a parent's mobile number | Missing OTPs and admit card links | Use your own active mobile number |
| School/temporary email ID | Can't access crucial updates | Use a personal, permanent email ID |
| Typos in email/mobile | No communication from NTA | Verify before submission |
Fix during correction: Unfortunately, mobile number, email, permanent/correspondence address, emergency contact and photograph cannot be changed during the correction window. This is why getting it right the first time is critical.
Mistake #4: Poor Quality Photo and Signature Uploads
| Requirement | Common Violations | Correct Format |
|---|---|---|
| Live photograph | Uploading old photos, selfies, or group photo crops | Use webcam/QR code for live capture; light background, 80% face visibility, including ears, no mask |
| Signature | Smudged, unclear, or digital signatures | Black/blue pen on white paper, scan in JPG/JPEG format (10-100 KB) |
| Photo dimensions | Wrong size or resolution | 3.5 cm x 4.5 cm, 10-200 KB file size |
Check: JEE Main 2026 Photo Size and Signature Guidelines (Revised)
Fix during correction: Correction in scanned images of the photograph and signature can be done during the correction period from December 2025 for Session 1.
Check: JEE Main 2026 Registration: Fix Aadhaar Photo Mismatch & Live Capture Errors
Mistake #5: Wrong Academic Information
| Field | Common Errors | Verification Impact |
|---|---|---|
| School name | Typos or abbreviations | Cross-verified during document check |
| Board name | Incorrect board selection | Can cause counselling issues |
| Roll number | Wrong digits entered | Mismatch during verification |
| Year of passing | Selecting the wrong year | Eligibility issues |
| Marks/percentage | Mistyping marks, board names, school names, or passing years | Document verification failure |
Fix during correction: Academic information, such as Class 10 and Class 12 details, along with the state code of eligibility, can be fully revised. Keep your marksheet handy and enter details exactly as printed.
Mistake #6: Incorrect Category or Reservation Selection
| Mistake Type | Issue | Correction Available |
|---|---|---|
| Selecting the wrong category (SC/ST/OBC/EWS) | Wrong fee charged, benefits lost | Yes, but an additional fee may apply |
| Not uploading the category certificate | No reservation benefits | Can re-upload during correction |
| Certificate date issues | For JoSAA counselling, OBC-NCL and EWS certificates must be dated after April 1, 2026 | Get a fresh certificate |
Check: JEE Main Reservation Criteria 2026: Check Category-Wise Quotas, Eligibility, and Documents Required
Fix during correction: You may either change your category or re-upload your category certificate, but not both. Your OBC caste must be included in the Central List; otherwise, fill under the Open Category.
Mistake #7 Wrong Exam City or Paper Selection
| Common Error | Problem | Solution |
|---|---|---|
| Choosing distant exam cities | Travel inconvenience on exam day | Select your home city and nearby options |
| Accidentally selecting B.Arch instead of B.Tech | Can't change after submission without the correction window | Paper type changes are allowed during correction |
| Wrong exam medium | Language barrier during the exam | Change during the correction window |
Fix during correction: Examination city and medium of examination may be changed, depending on the registered address.
Mistake #8 Payment Issues and Transaction Errors
| Problem | What Happens | How to Avoid |
|---|---|---|
| Page refresh during payment | Failed or duplicate transactions | Maintain a stable internet, don't refresh |
| Payment shows "Pending" | Form marked incomplete | Wait 2-3 hours, check status, retry if needed |
| Using the wrong payment mode | Transaction failure | Use recommended payment methods |
| Not verifying payment status | Form rejected | Always verify "Successful" status before logging out |
Fix during correction: If the payment was incomplete, you can complete it during the correction window. Certain changes, such as category change or changing exam city to a foreign location, require an additional fee.
Check:
- JEE Main 2026 Category Certificate Format for SC/ST, OBC-NCL, EWS and PwD Guidelines
- NTA Announces New Rule for JEE Main 2026; Mandates CBSE Class 11 Registration Number
Mistake #9: Not Using the Correction Window
| Assumption | Reality | Best Practice |
|---|---|---|
| "My form is perfect" | Some students assume their form is perfect and skip the correction window, then regret not correcting a small error | Log in during the correction period even if confident |
| "I'll fix it later" | No request for corrections accepted after 11:50 PM on December 2, 2025 | Make corrections immediately when the window opens |
| "NTA will contact me for issues" | No individual notifications for errors | Proactively check your entire form |
Fix during correction: Even if you're confident, log in once during the correction window and recheck your form. You only have two days to correct the JEE application.
Mistake #10: Submitting Multiple Applications
| What Students Do | Why It's Wrong | Correct Action |
| Fill in the new form after finding the error | NTA treats multiple applications as Unfair Means (UFM) | Wait for the correction window |
| Panic and create duplicate registration | Disqualification risk | Contact the NTA helpdesk for guidance |
| Think the second form will replace the first | Both applications flagged | Use only ONE application |
Fix during correction: Never submit a second application. Multiple forum discussions show students asking if they can submit another form, but the answer is always no. Use the official correction window only.
Expert Recommendations for Error-Free Registration
To avoid mistakes during your JEE Main 2026 registration, carefully verify all personal details with your Class 10 certificate, make sure that you upload photographs and signatures that are clear and of the right size in accordance with the NTA guidelines, and choose your category correctly.
Once you crack the JEE Main 2026, you will get admission to 31 NITs, 23 IIITs, and 40 GFTIs with 45,000+ seats, so a rejected form can waste your full year of efforts. The correction window is only for two days, so be prepared in advance and don't rush while making corrections in the application form.
Ques: What is the JEE Main 2026 Session 1 correction window deadline, and which major fields can be corrected?
Ans: The correction window is open from December 1 to December 2, 2025 (until 11:50 PM). You can correct:
- the name (candidate/parent - only one),
- category,
- Sub-category (PwD),
- Exam city preferences,
- Academic details (Class 10/12),
- Qualification details,
- Course/paper selection,
- PAN card,
- Date of birth,
- Gender, and
- Signature.
However, mobile number, email, addresses, emergency contact, and photographs cannot be changed.
Ques: If there's a name mismatch between my Aadhaar card and Class 10 certificate, which document should I follow for the JEE Main 2026 form to avoid rejection?
Ans: All your identification details (name, father's name, mother's name, DOB) entered in the form must match only your 10th-grade marksheet, not your Aadhaar card. NTA has clarified that small differences like an added middle name in Aadhaar won't cause major issues, but for the safest submission, always follow your Class 10 certificate exactly. If there's a significant mismatch, update the document with errors before filling the form.
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