Hi

You need to chose the code 3 as you have passed intermediate.

This is because,

Code 3 is for those who have already passed their intermediate/ puc.

In case, if you are in doubt  that why you cannot choose code 1 then code 1 is for  those who are appearing for class 12 board exam tension 2021 and results are awaited but in your case you result has already declared and now that you have passed your intermediate then with you cannot choose code 1.

Code 2  is for those who have passed 10+2 / Higher/Senior Secondary Examination /the Indian School Certificate Examination  .

But as  you have passed intermediate so you need to choose  3 as code 3 is for those who have passed intermediate or PUC from a board/ university.

For this please refer the page number 15 of Neet information brochure

Neet information brochure 2021 :- https://ntaneet.nic.in/webinfo/File/GetFile?FileId=2&LangId=P

Thank you