Hello Arohi

No you can't apply code 1.

Code 1 us applicable to those students who are appearing for xii board this year and awaiting for board results .

For compartment exam applicants and those who are reappearing for xii board due to any reason must apply code 2 .

Even those students who have haven't exam from NIOS are applicable for code 2.

For details you must visit the link given below

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