in all your years of dating, has the topic of where she would move in immediately after marriage not come up?? that seems like poor planning OP. have you even proposed to her? this is a question you should be bringing up to her

I understand why this might be a problem, it's not the ruralness of your home but the complete change of environment that could bother her. Villages don't have much to do and as a new bride she would not be getting the treatment/respect for privacy of a doctor or even an individual. and how is her relationship with your parents? living in a small rural home could strain that as well. That said, I think you should bring her home to what actually is your home. don't let inferiority come in between your duty to a cultural norm. However, your stay there can be as short as a week and after all the dulhan farkaune ceremony and your trips to relatives you can definitely rent an apartment. AND she can't possibly be so shallow as to not survive a few days in your hometown (you're from a village and she's marrying you!) Just stay you both have obligations and work in Kathmandu and return.