All commercial certificates have to be pre authenticated first from chamber of commerce. Usually chamber of commerce certificate attestation is done by respective states itself. After the chamber attestation, the required Embassy Attestation is carried out.
A pro-forma invoice is an invoice sent to the buyer before the shipment, giving the buyer a chance to review the sale terms (quantity of goods, value, specifications) and get an import license, if required in their country.
A packing list is prepared by the shipper and is a detailed break down of the items within a shipment. It may also include any “special marks” for identification. For example, the customer may want “ABC XX” in blue letters on the side of the packaging.