The JEE Main registration 2026 window is still open till 27th Nov,2025, and it is anticipated that approximately 14-15 lakh candidates will attempt the exam across both sessions. With such a huge number of registrations, initial reports from NTA facilitation centres indicate that more than 35% of applicants are making mistakes in their application forms.
Last year, the NTA recorded around 1.18 lakhs correction requests in just 5 days of correction windows, with mistakes like
- With category errors (23%),
- Wrong photos/signatures (31%) and
- Wrong personal/academic information (19)
Also Read: JEE Main 2026 Form Correction, Important Dates, Direct Link, Fee, Document Upload Guidelines
| Year | Total Applicants | Correction Requests | % of Students Who Made Mistakes | Most Common Error |
|---|---|---|---|---|
| 2023 | 9.4 lakh | 82,000 | 26% | Photo/Signature |
| 2024 | 11.3 lakh | 1,05,000 | 31% | Category Errors |
| 2025 | 12.1 lakh | 1,18,000 | 35% | Wrong Details + Photos |
| 2026 (ongoing) | Expected 14-15 lakh | Data Coming Soon | Estimated 35-38% | Aadhaar + Category |
With similar mistakes already being reported this year, let's talk about the top 5 JEE Main 2026 registration mistakes and how to fix those mistakes.
Also Check: JEE Mains Form Fill Up Date 2026 Live Updates
Top JEE Main 2026 Registration Mistakes to Avoid
According to the latest NTA guideline, the following top 5 mistakes are most common during JEE Main 2026 form filling. These mistakes, along with the steps to avoid them, are outlined below.
1. Incorrect Personal and Academic Details
If you enter the wrong personal details (name, date of birth, parents' names) or academic data (marks, roll numbers, passing year) could cause issues in document verification and the counselling process.
How to Fix: Before a final submission, compare each detail with your Class 10th and 12th mark sheets again. NTA allows a one-time correction during which some personal and academic details can be changed by signing into the NTA official portal.
2. Category Errors and Invalid Certificates
Incorrect choice of reservation category (e.g., General, OBC-NCL, SC, ST, EWS) or uploading of an expired/invalid certificate would take away your right to reservation benefits.
Read More: JEE Main 2026 Category Certificate Format for SC/ST, OBC-NCL, EWS and PwD Guidelines with Statistics
How to Fix: Go through the official information bulletin to check the requirements for different categories. Make sure your certificate is valid for the ongoing academic year (2026) and is issued by an authorised body.
| Category | Certificate Issued By | Validity | Accepted Format |
|---|---|---|---|
| OBC-NCL | District Magistrate/ Tahsildar | Valid only if issued after April 2025 | |
| EWS | Competent Authority | Valid for FY 2025–26 | |
| SC/ST | State Government | Lifelong validity | |
| PwD | Government Medical Authority | Valid until disability renewal date |
3. Improper Photograph and Signature Upload
Photographs and signatures that are blurry, the wrong size, or in an invalid format are some of the reasons why many forms are rejected. The NTA has very strict specifications regarding the formats and sizes.
How to Fix:
Adhere strictly to the NTA guidelines:
| Document | Format | Size | Background | Rules |
|---|---|---|---|---|
| Photograph | JPG/JPEG | 10-200 KB | White | 80% face visible, ears visible |
| Signature | JPG/JPEG | 4-30 KB | White paper | Black/Blue ink, not pixelated |
| Category Certificate | 50-300 KB | NA | Valid for 2026 admission | |
| Class 10 Certificate | 50-300 KB | NA | Must match name & DOB |
If the images are initially rejected for discrepancy, use the official NTA website correction window to re-upload them.
Check: JEE Main 2026 Photo Size and Signature Guidelines (Revised)
4. Aadhaar Details Mismatch
The application process can be stopped if there are discrepancies between the details on your Aadhaar card and those on the application form, such as the name and date of birth.
| Mismatch Type | Example | Issue Caused | Recommended Action |
|---|---|---|---|
| Spelling mismatch | “Rohit Kumar” vs “Rohith Kumar” | Verification delay | Update Aadhaar |
| DOB mismatch | 2007 vs 2006 | Application flagged | Update Aadhaar or mark sheet |
| Address mismatch | Old vs New Address | No major issue | Acceptable, but update later |
| Missing middle name | Rohit K. Singh | Minor issue | Write as per Aadhaar |
How to Fix: Before starting the JEE Main registration, verify that your name and birth date on the Aadhaar card are the same as the details on the Class 10th certificate. In case of discrepancy, go to an Aadhaar Seva Kendra for updating your particulars. The National Testing Agency offers a way to continue if a warning pop-up shows up while registering, giving you a chance to write the name as mentioned on the Aadhaar card; however, it is advised to update the Aadhaar first.
5. Using Invalid Contact Information and Skipping the Confirmation Page
Using another person's or an inactive cell number/email ID will not only cut the receipts, OTPs, and admit card notifications from NTA but also the updates. Moreover, it is often seen that the final confirmation page is not taken down after the payment, which is one of the common mistakes.
Check: JEE Main 2026 Check important documents
How to Fix: It is advisable to use a personal, active mobile number and email address that you frequently check. After the payment of the fee has been confirmed, make sure to download and print the final confirmation page and receipt of the payment for your records. This is the proof of your successful application submission.
JEE Main 2026 Registration Document Checklist Table
| Document | Mandatory | Format | Use |
| Photograph | Yes | JPG/JPEG | Verification + Admit Card |
| Signature | Yes | JPG/JPEG | Verification |
| Class 10 Certificate | Yes | Identity verification | |
| Class 12 Details | Yes | Enter online | Eligibility |
| Category Certificate | If applicable | Reservation | |
| Income/EWS Certificate | If applicable | EWS quota |
Also read: JEE Main 2026 step-by-step Registration Process
Extra Tips to Review Before Submitting Your JEE Main 2026 Application Form
- Just use one email ID and mobile number for you; those will be essential for OTPs and future logins.
- Have digital copies available in the sizes specified:
- Photo: 10-200 KB (JPG/JPEG)
- Signature: 10-100 KB (JPG/JPEG)
- Class 10 certificate: 50-300 KB (PDF)
- Category certificate (if applicable): 50-300 KB (PDF)
- Write down your Application Number and Password in several secure locations.
- Confirm every detail on the preview screen before making the final submission.
If the rules are followed precisely, then the process of filling the JEE Main 2026 application form will be simple. One wrong detail or a document that doesn't match can create unnecessary difficulties later on.
So, start early, keep the documents ready before starting with the registration process, and also go through every instruction on the official website before the submission of the application is are really good practice.
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