Tata Tiago NRG (2021-2025) mileage varies, depending on the variant. The petrol-manual variant of Tiago NRG (2021-2025) has a mileage of 20.09 kmpl. The petrol-automatic variant of Tiago NRG (2021-2025) has a mileage of 20.09 kmpl. The diesel-manual variant of Tata Tiago NRG (2021-2025) has a mileage of 0 kmpl. The diesel-automatic variant of Tata Tiago NRG (2021-2025) has a mileage of 0kmpl. The cng-manual variant of Tiago NRG (2021-2025) has a mileage of 20.00km/kg. The cng-automatic variant of Tiago NRG (2021-2025) has a mileage of 26.49 km/kg. Note that the mileage figures are as per ARAI.