Bhutanese currency is Ngultrum (Nu.) and is officially pegged to the Indian Rupee. Also Indian Rupee is acceptable all over Bhutan except Rs 500 and Rs 1000 currency notes.
Foreign sources placed Bhutan’s population at 2,094,176 in 2002. However, the official 1990 estimate by the Bhutanese government gave the country’s population as about 600,000.
There are many ways to see Bhutan. A short trip for a week or less will introduce you to the world's last remaining Himalayan kingdom, with visits to the Paro and Thimphu valleys and perhaps an excursion to Punakha, the ancient capital.