Indians need either passport or election ID card to get a permit to enter Bhutan. Indian currencies except 500 and 2000 notes are widely accepted in Bhutan. Practically, 500 notes are also accepted. Bhutan has two major, though very small, towns; Paro and the capital city-Thimphu. The following itinerary covers Thimphu, Punakha and Paro.
How to travel to Bhutan:
1) By road: Though there are three ways you can enter Bhutan by road, the entry through the western side of Bhutan is most popular. You have to reach the border town of Jaigaon (Phuentsholling on Bhutanese side) from where you can get a permit. But take note that the office issuing permit opens only on weekdays. The nearest airport to Jaigaon is Bagdogra and the nearest railway station is Hasimara. From Phuentsholling, Paro can be reached in 5 -6 hours.
2)By air: Only Druk air and Royal Bhutanese airlines operate flight servises in and out of Paro International Airport,Bhutan and if you do not book early, tickets will cost dearer. The cheapest ticket would be from Bagdogra to Paro, which costs around Rs 4000 and it takes less than an hour. But the flights from Bagdogra fly only twice a week. Else, you can book tickets from Kolkata, Mumbai,New Delhi or Bodhgaya. In case of travelling by air, permit can be obtained from Paro Airport immigration counter which is open 24*7. Even you can easily get a SIM card there at a nominal fee.
Accommodation and Food: Many budget hotels are available both in Thimphu and Paro but they generally get full before two months. They are not listed in popular travel websites and it makes them difficult to pre-book early. Hotel Chasel in Thimphu and New Seasons in Paro are two pure vegetarian restaurants which also provide budgetary accommodation. Many restaurants are there which provide both veg and non veg food. If you book a hotel in travel websites, it will cost around Rs2500 a day on twin sharing basis.
Best season to visit: September to December (autumn) is the peak season and offers the perfect and pleasant weather. Spring season from March to May is also suitable to travel to Bhutan. If you have to experience snow, choose December to April, but you may not get entry permits to higher altitudes.
In the early morning the aeroplane flew high above the Himalayan mountains to the Himalayan Kingdom and landed in one of the most dangerous airports in the world, the Paro International Airport.From Bagdogra Airport, to the land of thunder dragon!
Then I filled a form to obtain the permit and proceeded towards the taxi stand. The airport taxis charge you double, but you have no other way. Except them, all taxi fares are nominal, around Rs 2500-3000 per day.