Karaikudi Bus Service Contacts
| Office Name | Contact No |
| ABT Travels | 400657, 95666 56587 |
| Kannathal Travels | 99429 03768 |
| KPN Travels | 233721 |
| P.R. Travels | 227275 |
| Ramu | 224680 |
| Parveen Travels | 230909, 98409 19590 |
| Ahamadiya Travels | 232899, 93828 13652 |
| Renganathan Travels | 234243, 98410 63556 |
| SRM Travels | 400775, 97865 6466 |
| Three Star Travels | 90422 32262 |
| Essar Travels | 92422 28860, 92442 28860 |
| KKR Travels | 94429 60500 |
| SETC (Old Bus Stand) | 237697 |
| TNSTC (New Bus Stand) | 234121 |
| MPTC Old Bus Stand | 234012 |
| TNSTC(GM) | 238055 |
| MPTC Office | 234125 |