Regarding Nepal Visa procedure, it can be easily obtained upon your arrival at Tribhuwan International Airport, Kathmandu, Nepal. Importantly, in this regard, you should be holding your valid passport. (Single Entry Visa for 60 days - US$ 30.00).
UPDATED: July 16, 2008 Government of Nepal revises in Visa Fee:
The government has revised existing tourist visa fee to be effective from Shrawan 1, 2065 (July 16, 2008). As per the new fee structure, US $ 25 or equivalent foreign currency is required to obtain Tourist Visa with Multiple Entry for 15 days. Likewise, Tourist Visa with Multiple Entry for 30 days can be obtained by paying US $ 40 or equivalent foreign currency. Similarly, Tourist Visa with Multiple Entry for 100 days can be obtained by paying US $ 100.
Likewise, the government has also revised fee required to extend days of stay and visa renewal. As per the revise fee structure, Tourist Visa can be extended by paying US $ 2 or equivalent Nepalese currency per day. Likewise, Multiple Entry facility can be obtained only for the extension period by additional US $ 20 and visa fee for the extended period. Similarly, tourists can renew their visa by paying Nepalese currency equivalent to US $ 3 on the regular visa extension fee.
Important Note to all Visitors and Trekkers
Here's a little legalese from the Nepalese ~ requesting your cooperation to observe the following guidelines during your stay in Nepal. All foreign visitors are requested to be mindful of the date of expiry of the Nepalese visa and their passports to avoid future problems. As such, you are requested to apply for a visa extension, if you wish so, within the valid period of the Nepalese visa. You are requested to get the arrival/departure stamp on your passport at the entry/exit points to avoid further complications. Living in Nepal without passport or a valid visa is a punishable offense. Deviation from the prescribed routes in the trekking permit will be treated as the violation of the law. You are advised to be aware of brokers/cheaters or any counterfeit documents of visa/trekking permits to avoid legal complications. If you are not visiting/trekking through any authorized agency, do not use mediators for visa/trekking permits. You are requested to contact the Immigration Office directly. Change of purpose of stay without permission is not allowed and employment or voluntary service while on a tourist visa is strictly prohibited. It will be a punishable offense. Be sure to register at the police and Immigration cheek point along the trail. It is wise to register your trekking destination and schedule at your Embassy or Consulate. If you encounter problems along the trails, report them to the nearest police or Immigration post. You are requested to change money with authorized dealers and do not forget to take formal receipts. You are requested to inform the Immigration Office or Police Station for any changes in your address previously given in the visa application form. You are advised to be mindful to contact the Immigration Department for visa transfer in case of getting new passport or travel document from you Embassy/Consulate. Passport and trekking permit should be kept by the trekker while trekking. Filming in restricted areas or notified areas without permission is strictly prohibited. Respect local traditions, customs, values and sentiments to help them protect local cultures and maintain local pride.
Respect privacy when taking photographs
Respect holy places
Refrain from giving money to children since it will encourage begging
Respect for local etiquette earns you respect
Let the Himalayas change you - Do not change them
Protect the natural environment
Leave the campsite cleaner than you have found it
Limit deforestation - make no open fires
Burn dry papers and packets in a safe place
Keep local water clean and avoid using pollutants
Plants should be left to flourish in their natural environment
Help your guides and porters to follow conservation measures
Nepal Customs and Airport Information
Green Channel: Passengers arriving at Tribhuvan International Airport (TIA) without any dutiable goods can proceed through the Green Channel for quick clearance without a baggage check. If you are carrying dutiable articles, you have to pass through the Red Channel for detailed customs clearance.
Import: Apart from used personal belongings, visitors are allowed to bring to Nepal free of duty cigarettes (200) or cigars (50), distilled liquor (one 1.15 liter bottle), and film (15 rolls). You can also bring in the following articles free of duty on condition that you take them out with you when you leave: binoculars, movie or video camera, still camera, laptop computer, and portable music system.
Export: It is illegal to export objects over 100 years old (sacred images, paintings, manuscripts) that are valued for culture and religious reasons. Visitors are advised not to purchase such items as they are Nepal 's cultural heritage and belong here. The Department of Archaeology (Ph: 271504, 271478) at Ramshah Path near Singha Durbar has to certify all metal statues, sacred paintings and similar objects before they are allowed to be sent or carried out of the country. Handicraft dealers and travel agents are able to assist you in this process. For more information on customs matters, contact the Chief Customs Administrator, TIA Customs Office;
Airport Tax: Passengers departing from the Tribhuvan International Airport are required to pay an airport tax of Rs. 1100 if going to SAARC countries ( Bangladesh , Bhutan , India , Maldives , Pakistan and Sri Lanka ) and Rs. 1695.00 to all other international destinations.
Domestic airport tax is Rs. 170.
Nepal Time and Business Hours
Nepal is five hours 45 minutes ahead of GMT. Government offices are open from 10 am to 5 pm from Sunday through Thursday. On Fridays they remain open until 3 pm. Banks are open from Monday through Thursday from 9 am to 3 pm . On Fridays, banks remain open until 12 pm only. Business offices are open from 10 am to 5 pm Sunday through Friday.
Embassies and international organizations are open from 9 am to 5 pm Monday through Friday. Most shops open after 10 am and close at about 8 pm and are usually closed on Saturdays. Although Nepal works seven days a week, it observes numerous holidays, at the least a couple a month. So please check the holiday calendar. Government offices observe all the holidays and banks observe most of them. Businesses observe the major holidays only.