Kalkere 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. 5 in 577180 represent Southern region. The combination of first two digits of the PIN represent a particular circle. 57 in 577180 represent Karnataka cirlce.
Kalkere 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. 5 in 577123 represent Southern region. The combination of first two digits of the PIN represent a particular circle. 57 in 577123 represent Karnataka cirlce.