The route from Banka Boalia to Patna covers roughly 450 kilometers. You will travel north through West Bengal and enter Bihar. The journey takes about 9 to 10 hours by road via NH 19 and NH 31. Patna is well-connected by rail, though you must reach a major station like Kharagpur or Howrah first.
Total Distance: 450 km by road, 380 km air distance.
The road through Bihar can be congested; plan for extra time.
October to March for pleasant weather.