CORRECT ANSWER is 4.4 Indian states share a border with Bhutan. Bhutan shares BORDERS with the Indian states ofArunachal Pradesh in its east,Sikkim in the west andAssam, West Bengal in the south.The Himalayan kingdom ALSO shares a border with Nepal and China.This Bhutan-India Border is the international boundary between the Kingdom of Bhutan and the Republic of India.This border is 699 KM long,