Air Transport is considered as an important means of transport in the North-Eastern part of our country because: (i) Big rivers: Presence of big rivers like Brahmaputra make it difficult to construct roads and railways. Airways are suitable when rivers get flooded. (ii) Dissected relief: Uneven surface-not suitable for the construction of roadways and railwayscostly affair-can be easily travelled by airways. (iii) Dense forests: Dense forests hamper the construction of roadways and railways. (iv) International Frontiers: International borders of Bangladesh, Myanmar, China, etc., can be easily travelled by airways without much hassles.