The Charming town Paro is the home to the beautiful Tiger's Nest and also to the only airport of Bhutan. This lovely town with interesting local markets and smiling people, has so much to give!
Paro is the place where Bhutan's airport is located thus reaching to Paro should be a piece of cake. You can take a DrukAir flight from Calcutta to reach Paro.
But, if you aren't able to reach Calcutta or are living in another city, here's what I suggest you to do-
You can reach Delhi by flight, then take a flight to Bagdogra, and then hire a car to go to Pheuntsholing.
We had hired a car to go to Thimhpu and then Paro. It is more convenient and driver can guide you to restaurants, places to see etc.