Yes, you can get your entry visa upon arrival at Tribhuvan International Airport in Kathmandu. Also, you can get your visa at a consulate in your home country. In either case, you need to submit 2 (two) passport size photograph and the visa fee. The visa fee is US$25 for 15days, US$40 for 30days and US$100 for 90days all type of visa is multiple entry visa. Click here for visa form.