After encrypting my archives, flash drives, and emails, I found that encryption doesn't need to be complicated at all.

NPCI has notified to rollout NACH 3.0 for better recurring transactions like SIP, EMI deductions, salary credit, etc ...

NACH is a centralised system that helps banks handle recurring transactions such as salary credits, government subsidies, ...

Instead of sending you a physical copy of the game, CDKeys sends you a ‘key’, which is a product code/serial number for the game you’re purchasing. You then use the key to activate the game.