| # | Village / Locality | Post Office | PIN Code | Sub District | Type |
|---|---|---|---|---|---|
| 151 | Ariyankuppam | Kanalapadi BO | 📍 606611 | Tiruvannamalai | Branch Post Office |
| 152 | Ariyanthangal | Tirumani SO | 📍 604504 | Cheyyar | Post Office - PO |
| 153 | Ariyapadi | Pernamallur SO | 📍 604503 | Vandavasi | Post Office - PO |
| 154 | Ariyapadi | Ariyapadi BO | 📍 632314 | Arani | Branch Post Office |
| 155 | Ariyathur | Vazhur BO | 📍 604405 | Vandavasi | Branch Post Office |
| 156 | Ariyathur | Gudalur BO | 📍 606907 | Polur | Branch Post Office |
| 157 | Arnthathiyarpalayam | Mosavadi BO | 📍 604503 | Vandavasi | Branch Post Office |
| 158 | Aruddirapattu | Arudirapattu BO | 📍 606806 | Tiruvannamalai | Branch Post Office |
| 159 | Arugavoor | Arugavur BO | 📍 604407 | Cheyyar | Branch Post Office |
| 160 | Arumbakkam | Konalur BO | 📍 606755 | Tiruvannamalai | Branch Post Office |
| 161 | Arumparuthi | Sengattankundil BO | 📍 604407 | Cheyyar | Branch Post Office |
| 162 | Arunagirimangalam | Thenmahadevamangalam BO | 📍 606908 | Polur | Branch Post Office |
| 163 | Arunkunam | Mavalavadi BO | 📍 604406 | Vandavasi | Branch Post Office |
| 164 | Arunthathi Colony | Pundi Polur BO | 📍 606751 | Polur | Branch Post Office |
| 165 | Arunthathi Nagar | Palankoil BO | 📍 606751 | Polur | Branch Post Office |
| 166 | Arunthathi palayam | Sattuvanthangal BO | 📍 632511 | Cheyyar | Branch Post Office |
| 167 | Arunthathipalayam | Alividaithangi BO | 📍 604402 | Cheyyar | Branch Post Office |
| 168 | Arunthathipalayam | Melmattaivinnamangalam BO | 📍 604503 | Cheyyar | Branch Post Office |
| 169 | Arunthathipalayam | Munugapattu BO | 📍 604504 | Cheyyar | Branch Post Office |
| 170 | Arunthathipalayam | Tirumani SO | 📍 604504 | Cheyyar | Post Office - PO |
| 171 | Arunthathipalayam | Sengadu BO | 📍 604505 | Cheyyar | Branch Post Office |
| 172 | Arunthathipalayam | Kasthambadi BO | 📍 606903 | Polur | Branch Post Office |
| 173 | Arunthathipalayam | Sirumur BO | 📍 632314 | Arani | Branch Post Office |
| 174 | Arunthathiyar Colony | Su. Pappambadi BO | 📍 606808 | Tiruvannamalai | Branch Post Office |
| 175 | Arunthodu | Arunthodu BO | 📍 604501 | Vandavasi | Branch Post Office |
| 176 | Aruvadaithangal | Shro. Navalpakkam BO | 📍 604408 | Vandavasi | Branch Post Office |
| 177 | Aruvangadu | Pudur Chekkadi BO | 📍 606708 | Chengam | Branch Post Office |
| 178 | Asthinapuram | Somasipadi SO | 📍 606611 | Tiruvannamalai | Post Office - PO |
| 179 | Asvanagasuranai | Kilpaliyapattu BO | 📍 606704 | Chengam | Branch Post Office |
| 180 | Athi | Elaneerkundram BO | 📍 604401 | Cheyyar | Branch Post Office |
| 181 | Athikulam | Veraiyur BO | 📍 606806 | Tiruvannamalai | Branch Post Office |
| 182 | Athimalaipattu | Onnupuram SO | 📍 632315 | Arani | Post Office - PO |
| 183 | Athimoor | Athimoor Tindivanam BO | 📍 606803 | Polur | Branch Post Office |
| 184 | Athipadi | Athipadi BO | 📍 606708 | Chengam | Branch Post Office |
| 185 | Athipadi | Vanapuram SO | 📍 606753 | Tiruvannamalai | Post Office - PO |
| 186 | Athipakkam | Vandavasi SO | 📍 604408 | Vandavasi | Post Office - PO |
| 187 | Athipattu | Athipattu(T) B.O | 📍 635703 | Chengam | Branch Post Office |
| 188 | Athipet | Athipet B.O | 📍 635703 | Polur | Branch Post Office |
| 189 | Athiyandel | Ayyampalayam BO | 📍 606603 | Tiruvannamalai | Branch Post Office |
| 190 | Athurai | Athurai BO | 📍 606902 | Polur | Branch Post Office |
| 191 | Athuvambady | Athuvambadi BO | 📍 606907 | Polur | Branch Post Office |
| 192 | Attiyanur | Attiyanur B.O | 📍 635703 | Polur | Branch Post Office |
| 193 | Avaniyapuram | Avaniapuram BO | 📍 604504 | Vandavasi | Branch Post Office |
| 194 | Avnavadi | Vandavasi SO | 📍 604408 | Vandavasi | Post Office - PO |
| 195 | Avur | Avur SO | 📍 606755 | Tiruvannamalai | Post Office - PO |
| 196 | Ayalavadi | Ayalpadi BO | 📍 604505 | Vandavasi | Branch Post Office |
| 197 | Ayalpadi Colony | Ayalpadi BO | 📍 604505 | Vandavasi | Branch Post Office |
| 198 | Ayanmalai pudur | Nariyapattu BO | 📍 606811 | Tiruvannamalai | Post Office - PO |
| 199 | Ayilreddipalayam | Kattampoondi SO | 📍 606808 | Tiruvannamalai | Post Office - PO |
| 200 | Ayothi nagaram | Narayanakuppam BO | 📍 606708 | Chengam | Branch Post Office |