| Post office | Sector-21D S.O |
| Pin code | 121012 |
| Office type | S.O |
| Taluk / city | Faridabad |
| District name | Faridabad |
| State name | Haryana |
| Delivery status | Delivery |
| Division name | Faridabad |
| Region name | Ambala HQ |
| Circle name | Haryana |
| Related sub office | NA |
| Related head office | Faridabad NIT H.O |
| Pincode | Post office name | City | District | State |
|---|---|---|---|---|
| 121012 | Sector-21D S.O | Faridabad | Faridabad | Haryana |