| Post Office Name | Pincode | Office Type | Services | Location | Telephone | Departmental Information |
| Chengam S.O | 606701 | Sub Post Office (Delivery Office) | EMS E-Payment Epost IFS Inland Speed Post Instant Money Order International Mails Mobile Money Transfer Money Gram Money Order National Pension Scheme Postal Banking Service Postal Life Insurance Postal Stationary Registered Posts Western Union International Money Transfer | 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 |
