Dear Sharim,

Yes, definitely you can pursue 12th standard with UP Board. But for that you need to show your 11th pass out certificates to get admission to school or college under UP Board.

Moreover, you need to get your migration certificate from CBSE Board as well because you are changing your board from CBSE Board to UP Board.

And the migration certificate you can get from your respective school from where you have passed your 11th standard or you can contact or mail CBSE to issue you migration certificate, but your school authorities approval will be needed.

Also, only your one 12th will be liable either from CBSE Board or UP Board, that you have to decide.

You can't carry both 12th class certificates from different boards. Only one from both(CBSE or UP) will be acceptable.

Hope this got your query sorted.

All the Best!!