The journey from Dudhia to Purnia covers approximately 170 km. You will travel via the NH 27 highway, crossing into Bihar. The most practical way to reach Purnia is by private car or bus from Siliguri. The route is well-connected and passes through the agricultural plains of Bihar. Expect a travel time of 4 to 5 hours.
Total Distance: 170 km driving distance, 145 km straight-line air distance.
The highway is well-maintained, but watch for heavy traffic near Purnia.
October to March for pleasant weather.