While I agree that there are lot of scope of agro based industry in Nepal but main problem in Nepal is stability. Not trying to discourage and I would appreciate if someone explain me how we a business flourishes in such unstable environment like Nepal. For example, how would you transport your veggies when there is no fuel?. Also how would you deal with such a high percentage of inflation rate. Currently it's close to 12%. How would you do business when no one wants to take any credibility ? Yes I agree with everyone that there are lot of opportunities but no business will survive in long run in those kind of unstable condition. I am not saying you shouldn't go for business. In fact everyone here like you to succeed but it's a foolish to make any decision by hearing only pros.

Since your background is IT i think you would do much better in IT instead of going to agro field where you need to start from ground up. IT industry will not die anytime soon. Big data and analytics are the future.
Good luck.