Hello!
Yes, according to CBSE rules, you can take a gap year or two in between academic career but you have to provide a valid document for valid reason for this. You need to submit your pass certificate of class 10th, Passport size photograph, Transfer certificate, Character certificate.
Best schools are:
Bodhisukha School
Delhi World Public School
Ruby Park Public School and many more.
For further information, please refer to this link: https://school.careers360.com/boards/cbse
Best wishes
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