credit note

yes ..

No. Credit note is a document raised by supplier to receiver to reduce sales value along with tax already charged on sales invoice. Now if vendor decides not to take benifit of reduction of tax paid on original sales, the department will not question on same. Hence no mandatory requirement to charge GST on credit note

why any one not want to take benifit of tax... if you raise invoice with tax it is law that if you sale return then you have to raise a credit note as on basis origional invoice number ... do not forget you have to give detail of credit note in gstr 1

gst not basis on what vendor want what recepient want .. we have to follow law and rules

if you raise credit note on like discount then not mendetory to charge gst ...

credit notes can be financial credit notes without GST and it can be with GST as well.