I am currently in Dhaka and have to be in Kolkata by mid-April. This will be my first trip and I need to book train tickets and require help from someone. I first need to know what the Dhaka to Kolkata train ticket price is, and then need to know what all of the train options are for the journey. Can I book my Dhaka to Kolkata train ticket online? Is travelling by train from Dhaka to Kolkata a good decision?