Cab fares from Patna to Dumka can be found here. Taxi fares range between INR 8288 and 10026. Cost per km ranges from INR 12.75 and 15.5. No hidden charges and transparent pricing policy at Bookcab. Clear breakup of extras. BookCab has premium, luxury and affordable A/c and non A/c cars. Bookcab Fleet consists of Mercedes Benz car hire, Toyota Innova car hire etc. Bookcab's online cab booking system is convenient and the best cost-effective. Find premium and luxurious cars and their charges from Patna to Dumka here. Patna to Dumka route is spread over a distance of 316 km. It takes around 5 hours 37 mins to reach Dumka.