Tamil Nadu petrol VAT is 13% VAT + ₹11.52/L; diesel is 11% VAT + ₹9.62/L. City rates below are pump prices, so this VAT is already inside the number.
Lower percentage VAT, plus a large flat cess (about ₹11.52/L petrol, ₹9.62/L diesel).
The rupee cess keeps Chennai above low-VAT metros even though the % looks small.
| City | Petrol | Diesel | CNG |
|---|---|---|---|
| Chennai | ₹107.74 | ₹99.55 | ₹97.50 |
| Coimbatore | ₹108.23 | ₹100.06 | ₹96.50 |
Lowest petrol in Tamil Nadu here: Chennai at ₹107.74. Gaps inside the state are usually freight, not a second VAT.
How central excise and state VAT stack