See if you have filled the form for the WBCHSE i.e., if the admit card for the WBCHSE HS examination is issued on your name, then you will be accounted as an external student when you will be appearing for the examination next year. If you have not filled for the HS-2022 then you will be considered as a Fresh candidate/Regular Candidate in HS-2023.

I would recommend you to contact your school authorities/class teacher/principal/Head-master/Head-mistress regarding this, and you will be provided the information regarding the formalities required to do so.

For more information regarding WBCHSE you can consider the link below:

https://school.careers360.com/boards/wbchse

I hope this helps. Wish you a great day!