The Indian postal department uses a Pincode or Postal Index Number (PIN) for identifying delivery post office location. The pincode is a 6 digits number and this numbers are divided into 9 postal zones. The first digit represents the region, the second digits represent the sub-region, the third digit represents the district of the state and the remaining three digits represents the post office.
- The first digit indicates the region of the state.
- The second digit indicates the sub region of the postal circle.
- The third digit indicates the postal district of the state.
- The last 3 digits indicates the delivery Post Office.