| Post Office Name | Pincode | Office Type | Services | Location | Telephone | Departmental Information |
| Chengam S.O | 606701 | Sub Post Office (Delivery Office) | EMS (International Speed Post) E-Payment Epost IFS Inland Speed Post Instant Money Order International Mails Mobile Money Transfer Money Order National Pension Scheme Postal Banking Service Postal Life Insurance Postal Stationary Registered Posts | Chengam taluk of Tiruvannamalai district, Tamil Nadu state | 04188222330 | Tiruvannamalai H.O in Tiruvannamalai Division Chennai City Region Tamilnadu Circle |
| Chennasamudram B.O | 606701 | Branch Post Office (Delivery Office) | | Chengam taluk of Tiruvannamalai district, Tamil Nadu state | | Chengam S.O in Tiruvannamalai Division Chennai City Region Tamilnadu Circle |
| Kayambattu B.O | 606701 | Branch Post Office (Delivery Office) | | Chengam taluk of Tiruvannamalai district, Tamil Nadu state | | Chengam S.O in Tiruvannamalai Division Chennai City Region Tamilnadu Circle |
| Thithandapattu B.O | 606701 | Branch Post Office (Delivery Office) | | Chengam taluk of Tiruvannamalai district, Tamil Nadu state | | Chengam S.O in Tiruvannamalai Division Chennai City Region Tamilnadu Circle |
| Valayampattu B.O | 606701 | Branch Post Office (Delivery Office) | | Chengam taluk of Tiruvannamalai district, Tamil Nadu state | | Chengam S.O in Tiruvannamalai Division Chennai City Region Tamilnadu Circle |
