Hi Aspirant!

As you mentioned that you have cleared 12th class and you are a dropper, so according to the NEET 2021 codes, you can write NEET under code 02, which says that, "  It should also be noted that the qualifying examination code for NEET 2021 for droppers will also be the same. For instance, a candidate has passed the qualifying examination from CBSE/ISCE or any state board in the year 2018, but wish to appear for NEET 2021, he/she can apply for the exam with Code 2. "

For more information, visit here:

https://medicine.careers360.com/articles/neet-qualification-codes

Thankyou!