The Postal Index Number (PIN) or PIN Code is a 6 digit code of Post Office numbering used by India Post. The PIN was introduced on August 15, 1972. There are 9 PIN regions in the country. The first 8 ...

PIN code was introduced on August 15, 1972 and it is a 6-digit code. There are 9 regions that have been allotted with a separate unique PIN - 8 are geographical regions and digit 9 is reserved for ...

With a four digit PIN, there are a possible 10,000 combinations. But with a six digit code, there are 1 million possible combos, making it a lot tougher for someone to crack your security code.