2. China
Image Source: Wikipedia
Nepal's connections with the People's Republic of China are centuries old and deeply established. The two countries' historic and multifaceted bilateral relations have evolved since the days of Nepali monk and scholar Buddhabhadra (early 5th Century), Princess Bhrikuti (first half of the 7th Century), and Araniko (Anige, second half of the 13th Century), as well as early visits by Chinese monks and scholars such as Monk Fa Xian (Jin Dynasty), Monk Xuan Zang (Tang Dynasty), among others. On August 1, 1955, the two nations formalized their relations by establishing diplomatic relations. Friendship, understanding, mutual support, collaboration, and respect for each other's sensitivities have characterized relations between the two countries.
Over the previous decade, almost 10,13,636 Chinese tourists have visited Nepal, primarily for leisure and business, with 2019 seeing the highest number of Chinese tourists.