The trilateral relations between Nepal–India and China structurally have profound impact on international world politics today. This research emphasizes that how these countries come from different political structure and forms trilateral relations to achieve their political, military and economic desires. The author argues that why Nepal has been in so much of chaos? Is it because of the influence of the two booming world economies in Asia? Or is it because of the internal geopolitics happening in Nepal? Why dose India and China engulfs itself in the national affairs of Nepal? Is it because India's prominent position among the SAARC countries? Or is it because of the China's predominant position in the world affairs? Under the absolute monarchy, Nepali citizens were much healthier and secured. However why now under the current Maoist regime Nepal is facing unemployment, corruption, lacking in decision-making and forming public policy? As it is apparent, Nepal plays a vital role because of its geostrategic position in-between India and China. Hence the economic and the political stability of Nepal would be a key to enhance in evolving better trilateral relations among these powers.