Payment in hotels, travel agencies, and airlines are made in foreign exchange. Credit cards like Master and Visa are accepted at major hotels, shops, and restaurants. Remember to keep your foreign exchange encashment receipt while making foreign exchange payments or transferring foreign currency into Nepali rupees. The receipts may be needed to change left-over Nepali currency into hard currency before leaving the country. However, only 10 percent of the total amount may be converted by the bank.
ATM is widely in use in Kathmandu and Major Banks, hotels and exchange counters at Tribhuvan International Airport provide services for exchanging foreign currency. Exchange rates are published in English dailies such as The Rising Nepal, The Kathmandu Post and The Himalayan Times.
You can visit webpage of Nepal Rastra Bank – Central Bank of Nepal- http://www.nrb.org.np/ for the updated exchange rates.