Tamil Nadu new auto fares: Passengers will have to pay an additional ₹25 for every kilometre travelled beyond the initial 1.8 kilometres. Tamil Nadu revises auto-rickshaw fares, sets minimum charge at Rs 50 for first 1.8 km and Rs 25 per subsequent km. Tamil Nadu revises auto-rickshaw fares across Chennai and the State, detailing new minimums, per-km rates, night and ghat-road charges.