Hi Ishaan,

The benefit will be provided to each and every JEE aspirant irrespective of the fact that whether you have challenged the answer key or not.

The challenging scheme is made so because it is not possible for the answer-makers to be correct always and there may be a situation that someone might have a doubt upon the answer key uploaded and to clarify that he/she may challenge it.

Hope I was able to clear your doubt.

Thanks!!