What do GPO, HO, SO and BO mean?
The letters after a post office’s name are its type in India Post’s network. GPO, HO, SO and BO go from the biggest office to the smallest.
- GPO
- General Post Office: the main post office of a large city.
- HO
- Head Post Office: the main office of a postal division; the sub offices around it report to it.
- SO
- Sub Post Office: a town or neighbourhood post office, under a head office.
- BO
- Branch Post Office: a small village office under a sub office, often open only a few hours a day.
- PB
- Philatelic Bureau: the stamp collectors’ counter at a head office.
- NA
- No longer active: the office is closed or merged with another.