RTO codes in Tamil Nadu
Every Tamil Nadu registration plate opens with one of these 88 codes, TN-01 through TN-99. Paste a plate to see which office issued it.
INDTN-01Chennai (Central): Ayanavaram INDTN-02Chennai (North West): Anna Nagar INDTN-03Chennai (North East): Tondiarpet INDTN-04Chennai (East): Royapuram INDTN-05Chennai (North): Kolathur INDTN-06Chennai (South East): Mandavelli INDTN-07Chennai (South): Adyar INDTN-09Chennai (West): K. K. Nagar INDTN-10Chennai (South West): Virugambakkam INDTN-11Tambaram INDTN-12Poonamallee INDTN-13Ambattur INDTN-14Sholinganallur INDTN-15Ulundurpet INDTN-16Tindivanam INDTN-18Red Hills INDTN-19Chengalpattu INDTN-20Tiruvallur INDTN-21Kanchipuram INDTN-22Meenambakkam INDTN-23Vellore INDTN-24Krishnagiri INDTN-25Thiruvannamalai INDTN-27Salem INDTN-28Namakkal (North) INDTN-29Dharmapuri INDTN-30Salem (West) INDTN-31Cuddalore INDTN-32Villupuram INDTN-33Erode (East) INDTN-34Tiruchengode INDTN-36Gobichettipalayam INDTN-37Coimbatore (South) INDTN-38Coimbatore (North) INDTN-39Tirupur (North) INDTN-40Mettupalayam INDTN-41Pollachi INDTN-42Tirupur (South) INDTN-43Ooty INDTN-45Tiruchirapalli (West) INDTN-46Perambalur INDTN-47Karur INDTN-48Srirangam INDTN-49Thanjavur INDTN-50Tiruvarur INDTN-51Nagapattinam INDTN-52Sankagiri INDTN-54Salem (East) INDTN-55Pudukottai INDTN-56Perundurai INDTN-57Dindigul INDTN-58Madurai (South) INDTN-59Madurai (North) INDTN-60Theni INDTN-61Ariyalur INDTN-63Sivaganga INDTN-64Madurai (Central) INDTN-65Ramanathapuram INDTN-66Coimbatore (Central) INDTN-67Virudhunagar INDTN-68Kumbakonam INDTN-69Thoothukudi INDTN-70Hosur INDTN-72Tirunelveli INDTN-73Ranipet INDTN-74Nagercoil INDTN-75Marthandam INDTN-76Tenkasi INDTN-77Attur INDTN-78Dharapuram INDTN-79Sankarankovil INDTN-81Tiruchirapalli (East) INDTN-82Mayiladuthurai INDTN-83Vaniyambadi INDTN-84Srivilliputhur INDTN-85Kundrathur INDTN-86Erode (West) INDTN-87Sriperumbudur INDTN-88Namakkal (South) INDTN-90Salem (South) INDTN-91Chidambaram INDTN-92Thiruchendur INDTN-93Mettur INDTN-94Palani INDTN-95Sivakasi INDTN-96Kovilpatti INDTN-97Arani INDTN-99Coimbatore (West)
Questions people ask
How many RTO codes does Tamil Nadu have?
88 in our list, running from TN-01 to TN-99.
Which RTO is TN-01?
TN-01 is Chennai (Central): Ayanavaram, in Tamil Nadu.
Why are some Tamil Nadu numbers missing from this list?
11 numbers inside the range are not listed — TN-08, TN-17, TN-26 among them. Usually the state never issued them: Tamil Nadu skips every code whose digits add to eight, and others hold numbers back as reserved. A gap is normally the state's own decision, not a hole in our list.
Why does one city in Tamil Nadu have several RTO codes?
Chennai holds 9 of them — TN-01, TN-02, TN-03, TN-04. A busy city is usually split by vehicle class or by zone rather than served by one office, so which code a plate carries depends on where and what was registered, not on the city being listed twice.