Dear candidate, your code for neet 2021 application will be 2 as it states Candidates who have completed a period of 12 years under Higher/Secondary examination or the Indian School Certificate Examination (ISC), which is equivalent to Class 10+2 can opt for code 2. However, the last two years of study must include English, Physics, Chemistry, Biology/Biotechnology, or Mathematics or any other elective as a major subject as prescribed by the NCERT.

Hope, it helps!