Hello Davinder,

If you have not received your marksheet yet please contact CBSE through mail/helpline to let them know about this issue. In most cases you can get a copy of marksheet in DigiLocker. If not, then please inform the JAC CHD about the delay in the 12 improvement results. Generally process would be to apply with current percentage if the improved one should be provided as soon as possible. Please contact as required to both JAC CHD and CBSE.

good luck