Vehicle owners often search 'TN21 which city' to identify where their vehicle is registered - the answer is Kanchipuram, Tamil Nadu. This office, located at Karapettai, Kanchipuram, Chennai - 631552, is part of a 99-strong RTO network in the state.
The first four characters of any number plate reveal its RTO code - for Kanchipuram, that code is TN21. This helps verify vehicle origin, insurance details, and registration authenticity in Tamil Nadu.
RTO codes like TN21 were introduced to make every registered vehicle traceable to its exact district office.
| RTO Code | City / Office | |
|---|---|---|
| TN21 | Kanchipuram | 📍 You are here |
| TN20 | Tiruvallur | View → |
| TN22 | Meenambakkam | View → |
| TN19 | Chengalpattu | View → |
| TN23 | Vellore | View → |
| TN18 | Red Hills | View → |
The RTO code for Kanchipuram, Tamil Nadu is TN21. This code appears as the first four characters on every vehicle registration number issued by this office.
You can reach the TN21 RTO office in Kanchipuram at +(91)-44-27264277, or visit the office at Karapettai, Kanchipuram, Chennai - 631552.
Tamil Nadu has 99 registered RTO offices in our directory, including TN21 (Kanchipuram). You can view the complete list on the Tamil Nadu RTO page.
RTOCheck.com shows RTO office information (location, phone, email) for TN21, not individual vehicle owner records. For owner-specific details, use the official Vahan portal.
Yes, TN21 is an active RTO code assigned to Kanchipuram in Tamil Nadu. Any vehicle number plate starting with TN21 was registered at this office.