| Region Code |
Region Name |
District/ Zone |
| 01 |
Chennai North |
Thiruvotriyur, Manali, Madhavaram, Tondiyarpet, Royapuram, Thiru-Vi-Ka Nagar, Teynampet, Ambattur Zones and part of Tiruvallur Dist |
| 09 |
Chennai South |
Ambattur, Anna Nagar, Kodambakkam, Valasaravakkam, Alandur, Adyar, Perungudi, Sholinganallur Zones, Chengalpattu Dist , Part of Kanchipuram and Tiruvallur Dist |
| 03 |
Coimbatore |
Coimbatore, Tiruppur, Nilgiris |
| 04 |
Erode |
Erode, Namakkal, Salem |
| 05 |
Madurai |
Madurai, Dindigul, Ramanathapuram, Sivagangai, Theni |
| 06 |
Trichy |
Ariyalur, Karur, Mayiladuthurai, Nagapattinam, Perambalur, Pudukottai, Thanjavur, Thiruvarur, Tiruchirapalli |
| 07 |
Tirunelveli |
Kanniyaumari, Thoothukudi, Tirunelveli, Tenkasi, Virudhunagar |
| 08 |
Vellore |
Dharmapuri, Krishnagiri, Tirupathur, Ranipet, Vellore, Kanchipuram and part of Tiruvallur Dist |
| 02 |
Villupuram |
Cuddalore, Kallakurichi, Tiruvannalamai, Villupuram |
|
