The journey from Supaul to Kolkata is about 550 kilometers. The most practical way to travel is by train, which takes about 12 to 14 hours. You may need to change trains at major junctions like Katihar or Barauni. Road travel is also possible but takes longer.
Total Distance: 550 km by road, 450 km air distance.
Book tickets well in advance.
October to March for pleasant weather in Kolkata.