1. The north eastern states are full of big river, dissected relief, dense forests, frequent floods.
2. It has international frontiers with Myanmar, Bangladesh and China. Underthese conditions, air transport is preferred in these hilly areas of north-easternstates because air transport can cover very difficult areas like high mountains anddense forests
3. It is also useful in hostile areas and natural and human made calamitieslike floods.
4. It is only in the north eastern states that special provision are made toextend the air services to the common people.As such air travel is within their reach and preferred.