You need to show documents from Nepal too. My mothers visa got rejected recently as she showed no documents from Nepal. I thought I am paying for the entire trip she would not need any docs. The reason given was: Although you state your sponsor intents to fund your trip you are required to satisfy me of your circumstances in Nepal. I have therefore considered your own personal circumstances separately from those of your sponsor".

Applicant must show strong tie with the country and demonstrate why then will return back.
Her visa was approved on second application after including bank balance, property documents etc with the application.