hey i am sharing my experience, and i have one friend in nepal right now he applied more than 15 universities and unfortunately he was not selected anywhere for this fall. i directly came to one of the reputed university of us in graduate with full funding support in natural science. I have no idea about undergraduate but i have enough idea for graduate applicatio procedure and requirement. it does not cost too much, somewhere you do not need to pay application fee either, they will wave if you request and remainig cost is only posting and it does not cost too much if you use governemnt post office of nepal that the what i did. if you need more assistance please feel free to write i will reply frequently.