Other than Indian nationals, all visitors to Bhutan require a visa; all visas are issued from Thimphu; visas are only issued to tourists booked with a local licensed tour operator. The tour operator submits applications for tourist visas. Visa will will be endorsed only after full payment and at your point of entry the visa will be stamped in your passport. You only need to send passport copy (full paged and clear) to your tour operator so that the visa application will be done by them.