I am a business major myself. Before starting any business, you need to understand what your strengths are and what your weaknesses are. What kind of things motivates you? What are your interest? Are you looking for single ownership type business, or partnership? In USA, these two ownership have tax advantages. Second thing, business is all about financing, investing, and operating.
Seems like you are interested in business related to Nepalese culture. First, make a list of Nepalese cultural stuff and then take some time to think which type mostly motivates you? Also, location, location, location! This is very important.