You don't have to apply pressure data for electronic calculation. The generated output data from optimization calculation already has a pressure-induced value. You just need to take the cell coordinates from the output and use them in electronic calculation.
many thanks Md. Tanvir Hossain . Ok i understand. i will use lattice parameters and relaxed atomic positions for electronic band calculation. Only. Thank you very much.
Many thanks Roberto D'Agosta .I have added parameter as a following in vc-relax calculation for 10 GPa. Do you have any comment ? I observed that the lattice parameters changed with increasing pressure. I mean that the pressure process is working.
It seems fine. Possibly the threshold is low, compared with the default value of QE, I am not sure this is necessary -- but it is something you will see only running your calculations.