Patna to Supaul cab fares are found here. Car rental cost starts from INR 6886. Minimum charges per km ranges between INR 12.75 and 15.5. Total cost is clearly broken down into respective charges and no charges under the hood. Book taxi from the Bookcab's wide range fleet of cars from BMW car hire to Swift Dzire Car hire with taxi fares available here. Find taxi fares across India through Bookcab. Our Taxi Fare Calculator provides you with estimated cab fare between Patna and Supaul. The approximate road distance from Patna to Supaul is 252 km. The approximate travel duration is 4 hours 17 mins.