Nepal has the proud privilege of having a close relationship with China from the very early stage of history , which has gradually developed and expanded into all conceivable sectors affecting the daily life of the common people - Socioeconomic, cultural, religious , industrial , energy , environmental , Tourism , trade transits and commerce in recent days . This relationship is based on mutual trust, respect, understanding, confidence, and cooperation, Historically , this relationship is marked by arduous pilgrimages made by celebrated monks on both sides who made formidable travels across the Himalayas in quest of our common cultural , civilizational and religious heritage which was further enriched by the nuptial relationship of Princess Bhrikuti with King of Tibet Songsen Gampo , in the 6st century , culminating into spread of Buddhism in China . This was followed by the journey of Artist Arniko in 13 century who built a chain of outstanding edifices of Nepalese craftsmanship in the form of Pagoda of various place along the path of his journey from Uthaisan , the birthplace of Manjushri , and Belling , and other parts of China and finally up to Ulan Bator during the reign of Yuan dynasty.