India, Dec. 24 -- In Denmark, by December 30, the state-owned mail service, PostNord, "will end its collection and delivery of letters entirely," after 400 years. It will be the first European country to do so, and this was inevitable after a new law ended PostNord's duty to make the service accessible to everyone at affordable prices. Another one removed the mail's exemption from value-added tax that made it extremely expensive. Over the past 25 years, the number of letters dropped by 90 per cent in the country. Although other nations, including India, still have a vibrant mail service for traditional letters, their fate seems sealed, as they undergo restructuring, or have done so, to deal with digitised communication. However, there are...