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Common Mistakes to Avoid During JEE Mains Application Form Filling - Candidates can check this article to be aware of some common mistakes to avoid while filling the JEE Main 2026 application form. NTA activated the link for the application form on the official website, jeemain.nta.nic.in. The JEE Main registration 2026 commenced on October 31, 2025. As per a JEE Main 2026 notification, candidates were instructed to ensure that the Aadhaar card details are correct and the category/UDID card is updated and renewed if required. The last date for the JEE Main 2026 session 1 registrations is November 27, 2025. Candidates must complete the registration with valid information to avoid rejection of the JEE form. Nonetheless, the JEE Mains correction window will be activated for those who wish to edit the application. The National Testing Agency will conduct the JEE Main 2026 exam in two sessions in January and April 2026, respectively.
Also Read: JEE eligibility criteria | Documents required to JEE Main registration
The table below provides the required dimensions and specifications for documents for JEE Main 2026.
| Particular | Dimension | Size |
| Photograph in JPEG/JPG format | 3.5 cm x 4.5 cm | 10 KB to 200 KB |
| Signature in JPEG/JPG format | 3.5 cm x 1.5 cm | 10 KB to 100 KB |
| Class 10 certificate or equivalent in PDF format | 10 KB to 200 KB | |
| UDID Certificate in PDF Format (if applicable) | 50 KB to 300 KB | |
| Identity Proof in jpg/jpeg format | 10 KB to 200 KB |
Successfully registered candidates will be issued a JEE Mains admit card. The Joint Entrance Examination (Main) will be held as a computer-based test.Careers360 has compiled a list of common mistakes to avoid during JEE Main application form filling.
JEE Main application form 2026 is available on the official website from October 31, 2025. Candidates have to go through the instructions and procedure of filling out the JEE Mains application form. Moreover, keep all the required documents handy in the specified format to fill out the application form. Applicants can check below for the most common mistakes to avoid during the JEE Main 2026 application form filling.
Avoiding the Information Bulletin Information: Detailed information regarding the JEE application form will be mentioned in the JEE information bulletin. Many applicants start filling out the JEE Mains application form without reading the instructions carefully. JEE Main Information Bulletin 2026 comprises detailed information regarding eligibility criteria, documents required while filling out the application form, application fee, syllabus, exam pattern, code of conduct, etc.
How to avoid the mistake?
Visit the official website to download the NTA JEE Main information brochure. Take some time to read the complete information. Gather all the required information that will be required for filling the JEE Mains application form 2026 in the specified format and size.
Candidates must have a valid email id, contact number, proper communication details, and education information.
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Invalid Personal Details: While registering for JEE Mains 2026 candidates had to provide valid personal details, communication details, electronic communication details, and permanent address. Applicants must provide their details as mentioned in the Aadhar or Class 10th marksheet. If the information does not match the mentioned documents, the application will be rejected. Also, valid electronic communication details must be provided during registration.
How to avoid the mistake?
Provide a valid contact number and email id to receive all information regarding JEE Main 2026.
Fail to upload Proper Documents: Applicants had to upload recent photographs, signatures, Class 10 or Equivalent Certificate/Mark sheet, a scanned copy of identity proof, and a copy of PwD/PwBD/UDID certificate (PwD Certificate). If the mentioned documents are not in proper format, then the form will get rejected.
How to avoid the mistake?
Read the instructions and procedure of filling out the JEE Mains application form carefully before filling out the form.
Keep the documents ready in the required format and size. Otherwise, candidates will face issues while uploading the documents.
Failure in fee payment: Candidates might face technical issues during the payment of the JEE Main application fee. The form will be submitted after the successful transactions. Sometimes the amount will be deducted, but the message may display a failure in transactions. In such cases, candidates should wait 24 hours before making the new transaction. Candidates should log in using the JEE login credentials to check the status of their application fee.
How to avoid mistakes?
Check the internet connection before making the payment
Check the payment status through the candidate's dashboard. If the transaction is not successful, make a new payment.
Frequently Asked Questions (FAQs)
After the payment of the application fee, a message will display the application submitted successfully. Also, the information will be sent to the registered email id and contact number upon submission of the JEE form.
NTA JEE Main application form correction window will be opened on the official website. Candidates could edit certain details mentioned in the form.
For every wrong answer in JEE Main, 1 mark will be deducted.
On Question asked by student community
Hi,
In your JEE application, you have to write the application number of your c entral caste certificate because for central government admissions like JEE, you have to use details of your central caste certificate. NTA asks for the application number, which is written on the upper side of the central caste certificate.
Hope it helps!!!
Hello,
Yes, you should select OBC-NCL while filling the JEE MAIN application form, because NTA only recognizes the central government categories that is GEN, GEN-EWS, OBC-NCL, SC, ST, PwD. As VJA is a state specific sub- category it is not separately listed in JEE MAIN forms.
Ensure your OBC-NCL certificate is valid under Central Government list, carry the certificate during counselling/admission for verification.
To know more access below mentioned link:
https://engineering.careers360.com/articles/jee-main-reservation-criteria
Hope it helps.
HELLO,
JEE Mains study materials are currently available in only English and Hindi, so if you need the material in Hindi and English, then you can check for it in Careers360. All the materials are available for all subjects for JEE Mains.
Hope it helps!!!
The date of JEE Advanced 2026 is not announced yet.
But according to previous years records we can assume that the registration for JEE Advanced 2026 exam will likely start in April and the date of exam will lie in the month of May.
For your upcoming JEE Advanced 2026 will need to study more harder than you did in your JEE Mains Exam.
Also you need to check the syllabus which is being asked in the exam. Here is the detailed information about JEE Advanced 2026 ---- Check Here
Hello,
Yes, you need an OBC-NCL certificate if you want to claim the OBC-NCL reservation in JEE Main .
Here are the key points:
If you want the OBC-NCL quota, you must upload a valid OBC-NCL certificate.
The certificate should be issued by the government and must follow the latest format.
It should usually be issued on or after 1 April of the current admission year.
If you do not have a valid certificate, you will be treated as a General (Unreserved) candidate.
If you apply under General category, then no OBC certificate is needed.
Hope it helps !
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