Nepal exists to fulfill the global order. If the leaders of the world change, map of the world changes. The change does not happen frequently but in 100s of years..last.time the leaders of.the world changed was when UK becamw the king od the ocean around 250 years ago. Then the map of the world changed ralidly....and countries like nepal, burma, bhutan were born to help new global orders implemented. This is from my random wikipedia written history of countiies observation. May be wrong. So, its not India that decides whether Nepal exist or not but the global order of how the world has been operating for the past few 100 years. On future, thst may change and nepal may disintegrate or become part of india but that will reqire appeoval by high level globe managers haha