Hello

Hope you're doing good. As you are in 11th and if the 11th final exam which is taken by the board and its form fill up is not done you can change the PCMB combination to other like computer science in WBCHSE board.

But it is totally depending on the school or institute you are in , you can request the institute to change your stream.

Thank you.

Dear aspirant hope you are doing well...

As you opted PCMB in class 11th..you should talk/consult  from the college/ school for the same reason. As far as my knowledge once you opted PCMB as a subject and register yourself, it not possible to out of it... If your class 11th registration is not done yet. You may change your subjects. Hope it's helpful for you.

Thank you

If your have applied for the registration to the WBCHSE then you can't change your subject in this academic year. I would recommend you to contact the school authorities and get it discussed. If the registration application isn't submitted till now, then you can change it and replace with anyother subject offered by the school.

To know more about WBCHSE, visit the link below:

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

I hope this answer helps. All the very best for your future endeavors!