Hello aspirant,

Hope you are doing great. Yes, it is possible to change the group after 11th standard, but you should change the group even before the completion of your 11th, i.e. before completion of 11th exams. After completion of 11th you cannot change the group. This is because you cannot study in one group in one subject and another group in another subject. So, before giving your final exam, change your group.

Good luck, Thank you :)