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.
Paro Dzong (Fortress)
The Dzong has a long and fascinating history by Padma Sambhava at the beginning of the tenth century. Legend goes, a lama went to forest to get woods, he uttered the mantra "Hun" and the planks miraculously moved on their own to create the planks of Hungrel Dzong.
Paro Tsechu
The biggest festival of Paro, the Tsechu is held every year in the month of March or April. Bhutanese people travel from far and wide to attend the festival. It continues for five days with different religious performances such as dances are held .
Taktsang Monastery
The gem-like Taktshang monastery clings to a sheer, 3000 foot rock face. The name of this gravity defying cluster of buildings means literally \"The Tiger\'s nest,\" overlooks the whole Paro valley.