Visa Formalities:
Once you can get the visa at Nepalese Embassy or Consulate for other missions office abroad or at the airport on arrival children under 10 years need not pay any visa fees. Two passport size photos mandatory.

a) Free Visa:
    1) All tourists for 3 days.
    2) For SAARC countries and People's Republic of China.

b) Visa Fees:
   1) Single Entry : US $ 30 for 60 days.
   2) Multiple Entry : US $ 50 + US $ 30
Visa fee wil lbe extended subsequently for 30 days upon payment of US $ 30 for a maximum period of 150 days in a visa year (January - December)

For further information:
Department of Immigration
Bhrikuti Mandap (NTB compound)
Website: http://www.immi.gov.np/diplomaticvisa.php