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689646 PINCode is located in Pathanamthitta district
| Post Offices with the same pin code as Thengumcavu | |||
| No. | Post Office | District | Pincode |
| 1 | Mallasseri | Pathanamthitta | 689646 |
| 2 | Vazhamuttom east | Pathanamthitta | 689646 |