Query regarding gst on job work

Dear All,

I am basically a job worker doing the work of Processing of fabrics . I have 2 Queries

1) What need to be done in case if i recieved a fabric for Re-Processing  (Means i have Processed it earlier and raised the Tax invoice too but due to defect it was rejected). I cannot raise a TAX INVOICE here since it is already done .How to send the fabric using Eway Bill And what value needs to be coated in Eway bill while sending is it the actual value of the fabric i recieved on delievery challan  or What little confused here ??

2) In case of any work which is sent by me to an outside job worker do i have to fill ITC -04 form from my end ?

Thanks