Yes you can.

JEE Main 2020 Correction will be done only if the candidates will submit the fee and will complete all the steps of online application form of JEE Main. The candidates will be able to modify all the particulars (including images of the photo, thumb impression, and signature) of his/her application form.

Feel free to ask me in the comment box if you are having any further doubts

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Good Luck!

Hey!There
You can change person details in application form from correction facility.You can edit your application form from 11th October And correction window will open for 11th-17th October.During this period you can edit your personal details..
For more details visit below link:
https://www.google.com/url?sa=t&source=web&rct=j&url=https://engineering.careers360.com/articles/jee-main-application-form-correction/amp&ved=2ahUKEwjSsLHe3svkAhXPWisKHZgpAvUQFjAKegQIBRAE&usg=AOvVaw1s_HFC5XlL5HB_za3JPO-b&ampcf=1

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