i have filled wrong Annual income in jee mains exam.will it effect

And it can create problems while the verification process if you have done wrong filling of information on your JEE Main application form.

Large variations in income information can lead to:

Rejection of Your Application: In extreme circumstances, your application may get rejected at times, if it proves your information to be false and misleading.

Disqualification: If it is discovered after admission, then also you may get disqualified from the program.

For this, you should:

Call the NTA Helpline: You must immediately call the National Testing Agency (NTA) and brief them about the situation.

Documents in Support: Gather all the documents required that would prove your case, such as income certificates or any other proofs of income, etc.

NTA Guidance: Follow the actual guidance issued by the NTA to rectify the mistake.

You should take immediate action along with the proper information so that no further complications may take place.

All this information should be verified and confirmed before your application is submitted.

Yes it may affect in future if you fill any wrong information in JEE form even if its annual income .jEE will give you another chance to review your form and make any change if you wish to do so better to change it whenever correction window is open it is usually open after the application deadline is over.

You can also use the correction window to change other details, such as your personal details, education details, medium of exam, category, and exam center.

You can get jee updates here

https://engineering.careers360.com/articles/jee-main-application-form