Estimated charge for Patna to Buxar car rental starts from INR 6835. Rate per km starts from INR 12.75 and total fare varies according to the car-type, distance and time. Total cost is clearly broken down into respective charges and no charges under the hood. Select your best taxi and also find the taxi fares for different fleet of cars available at Bookcab here. Find taxi fares across India through Bookcab. Our Taxi Fare Calculator provides you with estimated cab fare between Patna and Buxar. Distance from Patna to Buxar is 136 km. It takes around 2 hours 34 mins to reach Buxar.