| Post office | Sasthamcottah S.O |
| Pin code | 690521 |
| Office type | S.O |
| Taluk / city | Kunnathur |
| District name | Kollam |
| State name | Kerala |
| Delivery status | Delivery |
| Division name | Pathanamthitta |
| Region name | Trivandrum HQ |
| Circle name | Kerala |
| Related sub office | NA |
| Related head office | Adur( Kla) H.O |
| Pincode | Post office name | City | District | State |
|---|---|---|---|---|
| 690521 | Karali Jn B.O | Kunnathur | Kollam | Kerala |
| 690521 | Pallisserickal B.O | Kunnathur | Kollam | Kerala |
| 690521 | Sasthamcottah S.O | Kunnathur | Kollam | Kerala |
| 690521 | Venga B.O | Kunnathur | Kollam | Kerala |
| 690521 | Vilanthara Jn B.O | Kunnathur | Kollam | Kerala |