| Post office | Kalwasia B.O |
| Pin code | 331411 |
| Office type | B.O |
| Taluk / city | Sardarshahar |
| District name | Churu |
| State name | Rajasthan |
| Delivery status | Delivery |
| Division name | Churu |
| Region name | Jodhpur |
| Circle name | Rajasthan |
| Related sub office | Bhanipura S.O |
| Related head office | Churu H.O |
| Pincode | Post office name | City | District | State |
|---|---|---|---|---|
| 331411 | Bhanipura S.O | Sardarshahar | Churu | Rajasthan |
| 331411 | Bhojasar B.O | Sardarshahar | Churu | Rajasthan |
| 331411 | Bukalsar Bara B.O | Sardarshahar | Churu | Rajasthan |
| 331411 | Jaitasar B.O | Sardarshahar | Churu | Rajasthan |
| 331411 | Jaitsisar B.O | Sardarshahar | Churu | Rajasthan |
| 331411 | Kalwasia B.O | Sardarshahar | Churu | Rajasthan |
| 331411 | Malkasar B.O | Sardarshahar | Churu | Rajasthan |
| 331411 | Malsar B.O | Sardarshahar | Churu | Rajasthan |
| 331411 | Ransisar B.O | Sardarshahar | Churu | Rajasthan |
| 331411 | Sadasar B.O | Sardarshahar | Churu | Rajasthan |
| 331411 | Tolasar B.O | Sardarshahar | Churu | Rajasthan |
| 331411 | Barjangsar B.O | Sardarshahr | Churu | Rajasthan |