In today's world where the buzz word is digital, would one imagine receiving messages, notes, letters and anything written or published through postal mail? Well, the answer is a big YES. In the world of emails and instant messenger apps, letters are still written and posted, not online – but through post offices. Even today in many parts of the world, the good old pen pals are exchanging letters with their friends so far away, where meeting face to face might not be an easy option. Besides bringing in a personal touch, it also keeps a big service behind it running - the service provided by th...