Science leke 1 month ho gaya par ab me soch rahi thi commerce le lu kya me le sakti hu
You will be able to change your subjects for a long time , but not when u have applied for exams mentioning the same subjects
Yes you can change.
Contact to your school and change it. If your registration will be done then you can't . Bt now it's no problem because your registration will not done. So won't worry.
Thanking you..