Sohpian BO
The first digit of the PIN reflects the region. In India, there are 9 PIN regions, out of which first 8 stands for geographical location and 9 is especially used for the army postal service. 7 in 793115 represent Eastern region. The combination of first two digits of the PIN represent a particular circle. 79 in 793115 represent North Eastern cirlce.
Sohpian BO
The first digit of the PIN reflects the region. In India, there are 9 PIN regions, out of which first 8 stands for geographical location and 9 is especially used for the army postal service. 7 in 793121 represent Eastern region. The combination of first two digits of the PIN represent a particular circle. 79 in 793121 represent North Eastern cirlce.