| Office Name | I.A.R.I. S.O |
| Pincodes | 110012 |
| Area | I.A.R.I. |
| Office Status | Sub Post Office |
| Postal Circle | Delhi |
| Postal Division | New Delhi Central |
| Postal Region | Delhi |
| District | Central Delhi |
| State | Delhi |
| Telephone No. | 011-25849036 |
| Office Name | Inderpuri S.O |
| Pincodes | 110012 |
| Area | Inderpuri |
| Office Status | Sub Post Office |
| Postal Circle | Delhi |
| Postal Division | New Delhi Central |
| Postal Region | Delhi |
| District | Central Delhi |
| State | Delhi |
| Telephone No. | 011-25833606 |
| Office Name | National Physical Laboratory S.O |
| Pincodes | 110012 |
| Area | National Physical Laboratory |
| Office Status | Sub Post Office |
| Postal Circle | Delhi |
| Postal Division | New Delhi Central |
| Postal Region | Delhi |
| District | Central Delhi |
| State | Delhi |
| Telephone No. | 011-25841150 |