Dear Swetha,

If you feel difficult to cope with a different board that is CBSE, you can definitely change it, only if you have just started with your 12th standard. You can submit migration from your previous school you have completed 11th in.

But, if you are already in the middle of the session, then it would be somewhat difficult. I would suggest you to please talk to the school you want to admit in, the faculty or management can help you better in this.

Hope this sorted your query.

All the Best!!