Gurudev, It depends on your profession. I think if you are into NGOs and INGO stuff then you might make good money and if you are really interested in doing something for Nepal, you might do a good job at developing Nepal as well. If you are into teaching, you could make a decent amount of money (enough to sustain) and also help a lot of kids. If you already have enough money to sustain, I would recommend going to villages and doing something there.