Thank you for contacting us!
We would like to inform that at present we can only provide Vietnam visa on arrival (Visa to be picked up at the arrival airport in Vietnam and applicable for those who travel by air only).
Because you come to Vietnam by train, we suggest you to come directly to Vietnamese Embassy/ Consulate where you are living or staying to obtain a visa for Vietnam there.
You need to take your passport, a passport-sized photo, and cash in person to the Consulate, where you will be interviewed about the purpose of your visit. You must also pay the stamping fee and wait in a few days to get the visa. Please note that the application procedures and fees may vary among countries and embassies/consulates.
We do hope that this information is clear and helpful for you.