Hi

It doesn't matter even if you are 1 year dropper or 2 year dropper, having already passed 12th from cbse, as a dropper you need to choose the code 02.

This because,

Code 2 is for those who have already passed class 10+2 examination, and this code can be used by droppers or by those who are pursuing a graduation course but  they don't have physics chemistry and Biology in their course or have completed graduation but don't have at least two of physics chemistry and Biology in their graduation.

Here's a short brief of Neet codes :-

Code 1 :- code 1 is for class 12th board 2021  examination appearing students with physics, chemistry, biology and English or have have already appeared but results are awaited i. e have not been declared.

Code 2 :- code 2 is for all those who have already passed their 10+2/higher /senior secondary/ Indian School Certificate Examination with physics, chemistry, biology and English

Code 3 :- code 3 says it is for those passed their intermediate / pre- degree examination  in the year  with physics, chemistry, biology and English ,your physics, chemistry and biology should also contain practical exam.

Code 4 :- pre - medical degree with Physics, chemistry and biology.

Code 5 :- code 5 is for all those who are doing BSc and has all the three of Physics, chemistry and biology in their graduation.

Code 6 :- code 6 is for all those students who have passed  BSc  with at least any two of following subjects :-

-) Physics,

-)chemistry ,

-)biology

Code 7 :- code 7 is for those who have passed their examination from foreign board which is equivalent of Indian 10+2 board.

For more visit

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

Thank you