Hello Candidate,

You have to fill your respective board of education i.e. Maharashtra State Board. But don't be worry. If you have entered some wrong information during the filling of application form for JEE Mains 2021, then you can correct these details using the correction window facility by NTA. It is estimated to be opened from January 19-21. But let me tell you that, you can't edit all the things in the application form. You can only edit some specified things. For more info, please visit the link.

https://www.google.com/amp/s/engineering.careers360.com/articles/jee-main-application-form/amp

Hope it helps you.