For Bangladesh passport holders wishing to explore India, a visa is required, with the Tourist visa generally being the single option for leisure travel. While direct flights from Dhaka to Kolkata can take just an hour, many choose the unique experience of crossing the extensive land border, a popular choice for millions annually. This unparalleled access via routes like Benapole-Petrapole underscores the close ties and makes travel uniquely convenient, though it's wise to consider peak season crowds. Considering time zones are nearly identical, focusing on currency exchange from Bangladeshi Taka to Indian Rupee upon arrival is a key practical step.