The Tata Nano EV is a great little electric vehicle that offers a range of up to 250 kilometers on a single charge. It has an impressive energy efficiency of up to 20 kms/kWh, which means you can go farther and faster on each charge. In terms of mileage, the Tata Nano EV offers an outstanding performance with a mileage of up to 20 km/l. This makes the Tata Nano EV one of the most fuel-efficient electric cars in India.