Why do we write PIN code on the letter?

Related questions

1. Why is Pincode important?
2. Which religion is more in Uttar Pradesh?
3. What is Bhopal state?
4. What is PIN code of Madhya Pradesh?
5. Is Chandigarh a State?
6. How many Muslims are in Bhopal?
7. What is my PIN code?
8. What is the post office pin code?
9. What is the capital of Bhopal?
10. Who was the king of Bhopal?

Tags

1. #which
2. #reach
3. #important
4. #correct
5. #takes
6. #really
7. #through
8. #delivery
9. #address
10. #indicates
11. #addressee
12. #place
13. #destination
14. #letter
15. #enables
16. #where
17. #student
18. #delivered
19. #basis