Hello,
If you mistakenly entered your serial number instead of your admission number during JEE Mains registration, you do not need to worry. NTA mainly verifies your identity through your name, date of birth, school details, photographs, and other documents. The admission number is not used for eligibility verification, so this mistake usually does not cause any issue.
If the correction window opens and allows editing of personal details, you can correct it. If the field is non-editable, you can leave it as it is because it will not affect your exam, admit card, or result. Just make sure all other details are correct.
Hope this helps you.

Hello,

No, your attempt will not be wasted.

This type of mistake is common, and NTA usually allows such errors because the admission number or serial number is not used for result processing.

Here is what you should do:

• Do not worry . Your form will still be accepted if all other details are correct.

• On exam day, carry your original ID proof and your school documents .

• If the invigilator asks, you can explain that you entered the serial number by mistake. It will not affect your exam.

• After the results or scorecard are released, if any correction is needed, NTA may open a correction process where you can update the detail.

You will be allowed to write the exam. This mistake will not cancel your attempt .

Hope it helps !