Greetings of the day aspirant !!

I hope you are fine. As per your mentioned query , i would like to tell you that there is no need to mention your 11th class details in NEET examination form. As per the eligibility criteria of filling the NEET application form , you should be clear your class 12th with any recognised board with minimum of 50 percent. So, you have to mention the details of your class 12th as it is mandatory.

I hope you will be clear now.

Good luck !!