In Faridabad district, Haryana, PIN code 121001 is anchored by Faridabad NIT HO, a Head Post Office. Mail addressed to this code is sorted through the Northern Postal Region, across 8 listed offices.
| Post office | Type | Full name |
|---|---|---|
| Faridabad NIT HO | HO | Head Post Office |
| Factory Area Faridabad SO | SO | Sub Post Office |
| Industrial Area Faridabad SO | SO | Sub Post Office |
| NIFM Faridabad SO | SO | Sub Post Office |
| Nh4 Faridabad SO | SO | Sub Post Office |
| Feroz Gandhi Nagar Faridabad SO | SO | Sub Post Office |
| Nh2 Faridabad SO | SO | Sub Post Office |
| Nh3 Faridabad SO | SO | Sub Post Office |
