Arni is Taluka (Tehsil) in Tiruvannamalai district of Tamil Nadu state. Arni has 44 areas (postal offices). Arni has a Head Office and the PIN Code of Arni is 632301.
| Pin code | Area | District | Taluka | Postal Status |
|---|---|---|---|---|
| 604403 | Adiyanur PIN Code | Tiruvannamalai | Arni | Branch Office |
| 632314 | Agraharapalayam PIN Code | Tiruvannamalai | Arni | Branch Office |
| 632315 | Ammapalayam PIN Code | Tiruvannamalai | Arni | Branch Office |
| 632315 | Ananthapuram PIN Code | Tiruvannamalai | Arni | Branch Office |
| 632314 | Ariyapadi PIN Code | Tiruvannamalai | Arni | Branch Office |
| 632301 | Arni PIN Code | Tiruvannamalai | Arni | Head Office |
| 606902 | Athurai PIN Code | Tiruvannamalai | Arni | Branch Office |
| 632315 | Ayyampalayam PIN Code | Tiruvannamalai | Arni | Branch Office |
| 604403 | Badur PIN Code | Tiruvannamalai | Arni | Branch Office |
| 606902 | Budamangalam PIN Code | Tiruvannamalai | Arni | Branch Office |
| 632316 | Chevur PIN Code | Tiruvannamalai | Arni | Sub Office |
| 606902 | Devikapuram PIN Code | Tiruvannamalai | Arni | Sub Office |
| 632311 | Kalasamudram PIN Code | Tiruvannamalai | Arni | Branch Office |
| 632311 | Kannamangalam PIN Code | Tiruvannamalai | Arni | Sub Office |
| 632311 | Kulathur PIN Code | Tiruvannamalai | Arni | Branch Office |
| 632314 | Kunnathur Arni PIN Code | Tiruvannamalai | Arni | Sub Office |
| 632311 | Kuppam PIN Code | Tiruvannamalai | Arni | Branch Office |
| 606902 | Mansurabad PIN Code | Tiruvannamalai | Arni | Branch Office |
| 632315 | Melnagar PIN Code | Tiruvannamalai | Arni | Branch Office |
| 606902 | Modaiyur PIN Code | Tiruvannamalai | Arni | Branch Office |
| 632512 | Mullandrum PIN Code | Tiruvannamalai | Arni | Branch Office |
| 632316 | Mullipattu PIN Code | Tiruvannamalai | Arni | Branch Office |
| 606902 | Nambedu PIN Code | Tiruvannamalai | Arni | Branch Office |
| 606902 | Narasingapuram PIN Code | Tiruvannamalai | Arni | Branch Office |
| 632316 | Nesal PIN Code | Tiruvannamalai | Arni | Branch Office |
| 632315 | Onnupuram PIN Code | Tiruvannamalai | Arni | Sub Office |
| 632512 | Poosimalaikuppam PIN Code | Tiruvannamalai | Arni | Branch Office |
| 632512 | Puthur PIN Code | Tiruvannamalai | Arni | Branch Office |
| 632315 | Puthur PIN Code | Tiruvannamalai | Arni | Branch Office |
| 632316 | Ragunathapuram PIN Code | Tiruvannamalai | Arni | Branch Office |
| 632316 | Rattinamangalam PIN Code | Tiruvannamalai | Arni | Branch Office |
| 632315 | Sedarampattu PIN Code | Tiruvannamalai | Arni | Branch Office |
| 606902 | Sevarapundi PIN Code | Tiruvannamalai | Arni | Branch Office |
| 632314 | Sirumur PIN Code | Tiruvannamalai | Arni | Branch Office |
| 632314 | Srinivasaudayanavaram PIN Code | Tiruvannamalai | Arni | Branch Office |
| 606902 | Thatchambadi PIN Code | Tiruvannamalai | Arni | Branch Office |
| 606902 | Thumbur PIN Code | Tiruvannamalai | Arni | Branch Office |
| 632316 | Vadugasathu PIN Code | Tiruvannamalai | Arni | Branch Office |
| 632315 | Vannankulam PIN Code | Tiruvannamalai | Arni | Branch Office |
| 632315 | Vazhiyur PIN Code | Tiruvannamalai | Arni | Branch Office |
| 604403 | Velliambakkam PIN Code | Tiruvannamalai | Arni | Branch Office |
| 632507 | Vethajipuram PIN Code | Tiruvannamalai | Arni | Branch Office |
| 632314 | Vettiyantholuvam PIN Code | Tiruvannamalai | Arni | Branch Office |
| 632316 | Vinnamangalamarni PIN Code | Tiruvannamalai | Arni | Branch Office |