Rohini;

As you have not studied anything between 2015-19 your qualification code will be "03" considering you have completed 12th from state board. If you've done it from CBSC/ ISC you need to fill up 02 as your qualification code. For more details

Here I am describing the all qualification code in a simple way -

code 01.  -This code is for the students who are appearing the 12th in 2020 and having subjects physics, chemistry , biology and English as a compulsory subjects.

code 02.  -This code is for the students who have passed the 12th standard form CBSC/ ISC and not taken addmission anywhere  (dropper or freshers ).

code 03 .  -This code is for the students who have passed their 12th from any state board(like up board, jac board, Karnataka board etc) with Physics, chemistry, biology /biotechnology and English as a compulsory subjects. (dropper or freshers ).

code 04.  -This code is for the students who have taken addmission in any pre medical or pre professional exam with Physics, chemistry, biology and English      after 12th .(example -nursing, pharma etc)

code 05.  -This code for first year students of Bsc with Physics, chemistry, biology /biotechnology. Also in 12th the student taken physics, chemistry, biology / biotechnology and English as a compulsory subjects.

Bsc second year students can fill code 02

code 06. -This code is for the students who are Bsc passout with any two subjects physics, chemistry, biology (botany or zoology )/biotechnology .Also in 12th the student taken physics, chemistry, biology and English.

code 07. -This code is not for Indian students .this is only for NRI and overseas students who have passed 12th with Physics, chemistry, biology.

Hope this helps and all the best

I didn't studied anything from 2015-2019..now I'm interested to write neet exam in 2020..this is firsttime I'm appearing for neet.which code should I belong?

Rohini, your code will be 02. Code 02 says: The Higher/Senior Secondary Examination or the Indian School Certificate Examination which is equivalent to 10+2 Higher/Senior Secondary Examination after a period of 12 years study, the last two years of such study comprising of Physics, Chemistry, Biology/Bio-technology (which shall include practical tests in these subjects) and Mathematics or any other elective subject with English at a level not less than the core course for English as prescribed by the National Council of Educational Research and Training after introduction of the 10+2+3 educational structure as recommended by the National Committee on Education.