By Road
There are no available bus services between Chennai and Bhutan and thus you must come to Kolkata. From Kolkata you can easily get a bus to Bhutan. It takes 18 hours to reach Phuentsholing from Kolkata. You can also opt for the bus, private taxi or any other local transportation in order to reach Bhutan.
By Train
Again there is o direct train route between Chennai and Bhutan, hence convenient options are New Alipurduar, Siliguri, New Jalpaiguri and Hasimara. Once you reach Jaigaon you can avail a taxi/cab to reach Bhutan.
By Air
Paro International airport is the only airport of Bhutan. Druk Air is the only airline which operates regular flights to and from Paro to Gaya, Bangkok, Kathmandu, Dhaka, Kolkata and Delhi. Unfortunately there are no direct flights from Chennai to Bhutan and hence first you can travel to Kolkata or Delhi and then fly to Bhutan.
