Gullapudi 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 521213 represent Southern region. The combination of first two digits of the PIN represent a particular circle. 52 in 521213 represent Andhra Pradesh & Telangana cirlce.
Gullapudi 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 521403 represent Southern region. The combination of first two digits of the PIN represent a particular circle. 52 in 521403 represent Andhra Pradesh & Telangana cirlce.