Hi there,

I hope you are doing well. Your query seems to be incomplete as you didn't mention that what mistake you've made.  But as it was just a counselling registration so nothing to worry about.

Except your name and marks everything else doesn't matter.

So take a sigh of relief.

Hope this helps you.

Hello there,
You can correct your name in the counseling form during the correction period. You should have been careful while filling up these important details. Else any mismatch with the original documents may make your application stand cancel. Nevertheless, you don't need to worry. You may correct your application form during the correction time period.
Hope this information helps you.
Good luck!!