| TN-01 |
Chennai Central (Ayanavaram) |
| TN-02 |
Chennai North West (Anna Nagar) |
| TN-03 |
Chennai North East (Tondiarpet) |
| TN-04 |
Chennai East (Royapuram) |
| TN-05 |
Chennai North (Perambur) |
| TN-06 |
Chennai South East (Mandavelli) |
| TN-07 |
Chennai South (Thiruvanmiyur) |
| TN-09 |
Chennai West (K. K. Nagar) |
| TN-10 |
Chennai South West (Virugambakkam) |
| TN-11 |
Tambaram |
| TN-12 |
Poonamallee |
| TN-13 |
Ambattur |
| TN-14 |
Sholinganallur |
| TN-15 |
Ulundurpet/Kallakurichi |
| TN-16 |
Tindivanam |
| TN-18 |
Red Hills/Gummidipoondi |
| TN-19 |
Chengalpattu/Madurantakam |
| TN-20 |
Tiruvallur |
| TN-21 |
Kanchipuram/Sriperumbudur |
| TN-22 |
Meenambakkam |
| TN-23 |
Vellore/Gudiyatham |
| TN-24 |
Krishnagiri |
| TN-25 |
Thiruvannamalai/Arani |
| TN-27 |
Salem(Not in Use after 1999) |
| TN-28 |
Namakkal North/Rasipuram |
| TN-29 |
Dharmapuri/Palacode/Harur |
| TN-30 |
Salem West/Omalur |
| TN-31 |
Cuddalore/Chidambaram/Virudhachalam/Neyveli |
| TN-32 |
Villupuram |
| TN-33 |
Erode East |
| TN-34 |
Thiruchengode |
| TN-36 |
Gobichettipalayam/Bhavani/Satyamangalam |
| TN-37 |
Coimbatore South/Sulur |
| TN-38 |
Coimbatore North |
| TN-39 |
Tirupur North/Avinashi |
| TN-40 |
Mettupalayam |
| TN-41 |
Pollachi/Valparai |
| TN-42 |
Tirupur South/Kangeyam |
| TN-43 |
Udagamandalam/Gudalur |
| TN-45 |
Tiruchirapalli West/Manapparai |
| TN-46 |
Perambalur |
| TN-47 |
Karur/Aravakurichi/Kulithalai |
| TN-48 |
Srirangam/Musiri/Thuraiyur |
| TN-49 |
Thanjavur/Pattukottai |
| TN-50 |
Tiruvarur/Mannargudi |
| TN-51 |
Nagapattinam |
| TN-52 |
Sankagiri/Mettur |
| TN-54 |
Salem East |
| TN-55 |
Pudukottai/Iluppur/Aranthangi |
| TN-56 |
Perundurai |
| TN-57 |
Dindigul/Oddanchatram/Vedasandur/Batlagundu/Palani |
| TN-58 |
Madurai South/Tirumangalam |
| TN-59 |
Madurai North/Vadipatti/Melur |
| TN-60 |
Theni/Uthamapalayam |
| TN-61 |
Ariyalur |
| TN-63 |
Sivagangai/Karaikudi |
| TN-64 |
Madurai Central |
| TN-65 |
Ramanathapuram/Paramakudi |
| TN-66 |
Coimbatore Central |
| TN-67 |
Virudhunagar/Aruppukkottai |
| TN-68 |
Kumbakonam |
| TN-69 |
Tuticorin/Thiruchendur/Kovilpatti |
| TN-70 |
Hosur |
| TN-72 |
Tirunelveli/Valliyur |
| TN-73 |
Ranipet/Arakkonam |
| TN-74 |
Nagercoil |
| TN-75 |
Marthandam |
| TN-76 |
Tenkasi/Ambasamudram |
| TN-77 |
Attur/Vazhapadi |
| TN-78 |
Dharapuram/Udumalpet |
| TN-79 |
Sankarankovil |
| TN-81 |
Tiruchirapalli East/ Thiruverumbur |
| TN-82 |
Mayiladuthurai/Sirkazhi |
| TN-83 |
Vaniyambadi/Tirupattur |
| TN-84 |
Srivilliputhur/Sivakasi |
| TN-85 |
Kundrathur |
| TN-86 |
Erode West |
| TN-88 |
Namakkal South/ Paramathi Vellore |
| TN-90 |
Salem South |
| TN-99 |
Coimbatore West |
