Begginer to export sales

You are first time export then document is
1 bill of lading
2 commercial invoice
3 bill of entry
4 shipping bill
and apply IEC code and LUT
you have to show in GSTR-1 Under Table no. 6 and Gstr-3B under show table no. 3(b) if zero rated and taxable then you have show 3(a)

If ur doing export, then file the LUT under GST. It will give u option not to pay IGST while doing export.

Export can be done by two ways: one is withpayment of IGST and another is without payment of IGST. So, it's upon u what u want to do?

In the case of Export of Goods, u have to maintain the invoiced raised from u to the part outside India and the shipping bill. You will get the details of shipping bill from ICEGATE portal.