| # | Village / Locality | Post Office | PIN Code | Sub District | Type |
|---|---|---|---|---|---|
| 401 | Ganesapuram | Arpakkam BO | 📍 606752 | Tiruvannamalai | Branch Post Office |
| 402 | Ganesapuram | Nookambadi BO | 📍 606752 | Tiruvannamalai | Branch Post Office |
| 403 | Ganesapuram | Thumbakkadu BO | 📍 606803 | Polur | Branch Post Office |
| 404 | Ganesapuram | Ananthapuram BO | 📍 632315 | Polur | Branch Post Office |
| 405 | Gangalamahadevi | Adamangalam SO | 📍 606901 | Polur | Post Office - PO |
| 406 | Gangasoodamani | Morakaniyanur BO | 📍 606801 | Polur | Branch Post Office |
| 407 | Gangavaram | Gangavaram BO | 📍 606901 | Polur | Branch Post Office |
| 408 | Garudapuram | Salvedu BO | 📍 604403 | Vandavasi | Branch Post Office |
| 409 | Gengampattu | Japthikariandal BO | 📍 606702 | Chengam | Branch Post Office |
| 410 | Gengampoondi | Mahamayee Tirumani BO | 📍 604501 | Vandavasi | Branch Post Office |
| 411 | Genganandhal | Kattumalayanur BO | 📍 606804 | Tiruvannamalai | Branch Post Office |
| 412 | Gengapattu NA | Gangapattu BO | 📍 606804 | Tiruvannamalai | Branch Post Office |
| 413 | Gengapuram | Kolappalur SO Tiruvannamalai | 📍 632313 | Vandavasi | Post Office - PO |
| 414 | Giddan Gudisai | Kannamangalam SO | 📍 632311 | Arani | Post Office - PO |
| 415 | Ginganallur | Ladavaram BO | 📍 606751 | Polur | Branch Post Office |
| 416 | Giridharanpettai | Tiruvettipuram SO | 📍 604407 | Cheyyar | Post Office - PO |
| 417 | Girijapuram | Mamandur Kanchipuram SO | 📍 631702 | Cheyyar | Post Office - PO |
| 418 | Goodalur | Tellar SO | 📍 604406 | Vandavasi | Post Office - PO |
| 419 | Goonambadi | Tellar SO | 📍 604406 | Vandavasi | Post Office - PO |
| 420 | Gopalapuram | Palanandal BO | 📍 606752 | Tiruvannamalai | Branch Post Office |
| 421 | Goundankottai | Valayampattu BO | 📍 606701 | Chengam | Branch Post Office |
| 422 | Govindarajapuram | Perunkolathur BO | 📍 606708 | Chengam | Branch Post Office |
| 423 | GovindarajaPuram | Kannamangalam SO | 📍 632311 | Arani | Post Office - PO |
| 424 | Govinder Kottai | Kilkarippur BO | 📍 606755 | Tiruvannamalai | Branch Post Office |
| 425 | Guberapattinam | Mottakkal BO | 📍 606708 | Chengam | Branch Post Office |
| 426 | Gudalore | Gudalur BO | 📍 606907 | Polur | Branch Post Office |
| 427 | Gudalur Z | Gudalur BO | 📍 606755 | Tiruvannamalai | Branch Post Office |
| 428 | Gujalpettai | Kalvasal BO | 📍 606903 | Polur | Branch Post Office |
| 429 | Gulalpadi | Vadamathur BO | 📍 606702 | Chengam | Branch Post Office |
| 430 | Gundal Puravadai | Erumpoondi BO | 📍 604601 | Tiruvannamalai | Branch Post Office |
| 431 | Gunikanthur | Gunikanthur B.O | 📍 635703 | Polur | Branch Post Office |
| 432 | Gurukilamboor | Bhimarapatti BO | 📍 606708 | Chengam | Branch Post Office |
| 433 | Gurukulanthangal some area | Devikapuram SO | 📍 606902 | Arani | Post Office - PO |
| 434 | Gurukulathangal | Narasingapuram BO | 📍 606902 | Polur | Branch Post Office |
| 435 | H Krishnapuram | Kolundampattu BO | 📍 606706 | Chengam | Branch Post Office |
| 436 | H Kuppanthangal | Kolundampattu BO | 📍 606706 | Chengam | Branch Post Office |
| 437 | Hariharapakkam | Namandi BO | 📍 604410 | Cheyyar | Branch Post Office |
| 438 | Harijan Colony | Nambedu BO | 📍 604505 | Polur | Branch Post Office |
| 439 | Harikrishnapuram | Arugavur BO | 📍 604407 | Cheyyar | Branch Post Office |
| 440 | Hasanampettai | Hasanamapettai SO | 📍 604402 | Cheyyar | Post Office - PO |
| 441 | Housing Board | Mullipattu BO | 📍 632316 | Arani | Branch Post Office |
| 442 | Ilaneerkundram | Elaneerkundram BO | 📍 604401 | Cheyyar | Branch Post Office |
| 443 | Illupakunam | Kasthambadi BO | 📍 606903 | Polur | Branch Post Office |
| 444 | Iluppanthangal | Sanipundi BO | 📍 606755 | Tiruvannamalai | Branch Post Office |
| 445 | Imapuram | Kolappalur SO Tiruvannamalai | 📍 632313 | Vandavasi | Post Office - PO |
| 446 | Inam Kariyandal | Inamkariyandal BO | 📍 606604 | Tiruvannamalai | Branch Post Office |
| 447 | Indira Nagar | Oorgoundanur BO | 📍 606710 | Chengam | Branch Post Office |
| 448 | Indravanam | Indiravanam BO | 📍 632313 | Polur | Branch Post Office |
| 449 | Injimedu | Injimedu BO | 📍 604503 | Vandavasi | Branch Post Office |
| 450 | Irulambarai | Ramanathapuram BO | 📍 606905 | Polur | Branch Post Office |