India is definitely the world's secondly-biggest land when it comes to human population, and contains a massive postal network. Indian native post office pin codes are used to recognize every single post office across the nation. Pin codes behave as a distinctive identifier for each and every post office, allowing https://www.tumblr.com/back2lol-blog/712967445671002112/the-history-and-evolution-of-the-indian-postal-pin