The journey from Takdah to Patna covers about 450 kilometers. You first descend to Siliguri/NJP, then take a train heading west towards Patna. The route passes through the plains of West Bengal and Bihar. Patna is the capital of Bihar. The total travel time is around 10 hours.
Total Distance: 450 km driving distance, 380 km straight-line air distance.
Trains are the most comfortable way to cover this distance.
October to March for pleasant weather.