There are 5 post offices under PIN code 110020.
| Post Office | Office Type | Delivery Status | Taluk | District | Division | Region | State | Circle | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | C R R I S.O (South Delhi) | Sub Office | Non-Delivery | New Delhi | South Delhi | New Delhi South | Delhi | Delhi | Delhi |
| 2 | F F C Okhla S.O | Sub Office | Non-Delivery | New Delhi | New Delhi | New Delhi South | Delhi | Delhi | Delhi |
| 3 | Okhla Industrial Area Phase-i S.O | Sub Office | Non-Delivery | New Delhi | South Delhi | New Delhi South | Delhi | Delhi | Delhi |
| 4 | Okhla Industrial Estate S.O | Sub Office | Delivery | New Delhi | South Delhi | New Delhi South | Delhi | Delhi | Delhi |
| 5 | Tehkhand B.O | Branch Office | Non-Delivery | New Delhi | South Delhi | New Delhi South | Delhi | Delhi | Delhi |