Hi aspirant,

Your question is somewhat confusing because at first you say that you have made a mistake but you are telling that you don't have a sister but a brother. However it is not a very big issue considering that it won't affect your rankings but you would have to create a affidavit during the counselling that a mistake was done by virtue of misconception. Also there is no correction window available for the JEE main 2022 session so you cannot correct it. Another thing that I would like to mention here for the phase 2 of examination you would not be allowed to fill the form again but your the details for phase one would be carried on and you would just required to pay the fee only. However to get the accurate guidance I would request you to mail the helpdesk of national testing agency to sort out the issue.

Hope it helps!!