Sikkim

Sikkim is a landlocked Indian state nestled in the Himalayas that borders Nepal in the west, the Tibet Autonomous Region of the People's Republic of China to the north and the east and Bhutan in the southeast.»

Bhutan

Bhutan is a small landlocked country in South Asia, located at the eastern end of the Himalayas and bordered to the south, east and west by the Republic of India and to the north by the People's Republic of China.»

Nepal

Nepal is a landlocked country in South Asia, located in the Himalayas and bordered to the north by the People's Republic of China, and to the south, east, and west by the Republic of India. »

Tibet

Tibet is a plateau region in Asia, north of the Himalayas. It is home to the Tibetan people, and to some other ethnic groups such as Monpas and Lhobas, and is inhabited by considerable numbers of Han and Hui people. »

India

India, Home to the ancient Indus Valley Civilisation and a region of historic trade routes and vast empires, the Indian subcontinent was identified with its commercial and cultural wealth for much of its long history. »