Hello abhi,

As you have mentioned that you are in first year of Bsc ,Candidates who are in the first year of B.Sc or similar course 3 year degree course must have mark code 05.

code 05 includes-

The first year of the three years degree course of a recognized University with Physics, Chemistry and Biology/Bio-technology including practical tests in these subjects provided the examination is a University Examination and candidate has passed the earlier qualifying examination with Physics, Chemistry, Biology/Biotechnology with English at a level not less than a core course.

For detailed information click here- https://medicine.careers360.com/articles/neet-qualification-codes

hope it helps,

Good luck!