Eway bill after completing job work

if goods valued 100000 sent for jobwork with dc and eway bill and after jobwork done , then jobworker raises invoice for job work rs 200000 and raises eway bill declaring 200000 only .

is the practice correct ?

As a jobworker whether need to put outward dc for 10 lacs and tax invoice 2 lacs and eway bill selecting delivery challan option declaring 10 lacs and showing 2lacs in other charges. is it correct?