what is pincode

A Postal Index Number (PIN) is a six-digit code in the Indian postal code system used by India Post. It was introduced on August 15, 1972, to simplify the manual sorting and delivery of mail by eliminating confusion over incorrect addresses, similar place names, and different languages used by the public. The first digit of a PIN indicates the zone, the second indicates the sub-zone, and the third, combined with the first two, indicates the sorting district within that zone. The final three digits are assigned to individual post offices within the sorting district