Birbhanpur BO is the primary post office registered under PIN code 221311 in Varanasi, Uttar Pradesh. This code sits within the Northern Postal Region, with 7 offices operating under it.
| Post office | Type | Full name |
|---|---|---|
| Birbhanpur BO | BO | Branch Post Office |
| Kashipur BO | BO | Branch Post Office |
| Mahgaon BO | BO | Branch Post Office |
| Mehandiganj BO | BO | Branch Post Office |
| Mohansarai BO | BO | Branch Post Office |
| Babhaniaon BO | BO | Branch Post Office |
| Rajatalab SO | SO | Sub Post Office |
