Hi there,

Schools do board registeration for class 10th and 12th in previous year.  That's why admissions are not open in School for 10th and 12th class . Because of Same reason it is suggested to students to not change there School in 10th and 12th class. Try to complete your 11th and 12th from same school otherwise you may have to face problems.

If you still want to change school then there may be some schools that can give you admission in 12th class. For more information you should contact to administration of school in which you want to talk admissions.

Other option that you have is to take admission in Other school in 11th class and repeat your class but i will suggest you to not do it as it is totally wastage of time.

Hope it helps you

Good luck!