1. Background

Nepal, rich in unique natural beauty, rich biological diversity, multi-ethnic, multilingual, multi-religious and social diversity and rich in historical and cultural heritage, is known as a major tourist destination on the world tourism map. With the unprecedented development in science, technology and communication system, the entire world is turning into a village, it is necessary for Nepal to increase its ability to attract the world tourism market by presenting these national heritages to the world. Since the tourism business itself is the main basis of the development of the national economy, it has become inevitable to improve the standard of living of the people by increasing the livelihood and employment opportunities of the common citizens through the diversification and expansion of this business. For this purpose, on the one hand, it is essential to properly protect and promote these diverse heritages of Nepal, and on the other hand, it is necessary to develop all types of infrastructure related to tourism services, including international air transport services, and increase the tourism industry numerically and qualitatively.