Revenue Recognition Sales

Hi,

Can someone tell me what all documents to refer for point of recognition of sale.

Actually in case of domestic sales, we consider the point of despatch as revenue recognition point.What is the logic? Is it correct as per IFRS and Indian GAAP?

For export sales, for CIF sales, we reverse the sales for which Bill of Lading is not yet made. I want to know the correctness and logic for this as well.

If someone can urgently respond on this, thanks