In INDIA, Postal Index Number (PIN) or Zip code is a 6 digit code. And there are total 8 PIN regions in India. It is quite simple to understand how Indian PIN code works. Here is how it works:

• The first two digits of the PIN Code indicate the sub region/postal circles.
• The first three digits of the PIN Code indicate a sorting/revenue district.
• The last three digits of the PIN Code refer to the delivery Post Office.