Thanks to the free movement agreement between India and Bhutan, travelers with Indian or Bhutanese passport can travel without any VISA requirement of ID prior verifications. Therefore, many tourists opt for hiring a cab, driving their own car, or crossing the border on a bus journey from the Phuentsholing, Samdrup Jongkhar or Gelephu border.
There are no direct train routes available that go to Bhutan. However, the nearest railway station within India is Hasimara which is situated only 17 km away from Phuentsholing in the Indian state of West Bengal. However, it is better to travel through the bigger railway stations like New Alipurduar, Siliguri, and New Jalpaiguri Station which are slightly further but have better connectivity to cities across India.
Paro International Airport is the only functional international airport for commercial flights. The national aircraft of Bhutan, Druk Air is the only airline, operates regular flights to and from Paro to Kolkata, Delhi, Gaya, Bangkok , Kathmandu and Dhaka (Bangladesh). Other than that, if you don’t feel like waiting and risking your days of vacation for an irregular flight then take a safe route by flying into Palmieri.