Dear aspirant,

Many students actually face similar issues. If you gave the wrong Class 12 details or board in JEE Main, it may not affect your eligibility for the counseling as long as your marks and result are genuine and it matches the documents you’ll submit during JoSAA counselling. During document verification, the actual mark sheet will be checked, and that’s what matters most. Since NTA can't make changes now, and JoSAA isn’t responding to you, just make sure to carry all the correct documents during reporting. Explain the situation politely if asked. Mistakes in the form are scary, but they're not always disqualifying if your core documents are valid and complete.

Good luck!