Hi Aspirant!

You can apply for improvement and for same you can either approach to your school managemet or to the state board via website. Also, I would suugest you to first wait for the result and then take any decision.

Also, you can repeat the 12th from the NIOS (National Institite of Open Schooling) or by the same state board which you studied earlier.  NIOS results are acceptable all over India as other state/national/private boards.

To know more, about NIOS, visit here:

https://nios.ac.in/

Thankyou!