1. India (3,287,263 km2)
India, officially the Republic of India, is a country in South Asia. It is the second-most populous country, the seventh-largest country by area, and the most populous democracy in the world. Bounded by the Indian Ocean on the south, the Arabian Sea on the southwest, and the Bay of Bengal on the southeast, it shares land borders with Pakistan to the west; China, Nepal, and Bhutan to the north; and Bangladesh and Myanmar to the east. In the Indian Ocean, India is in the vicinity of Sri Lanka and the Maldives; its Andaman and Nicobar Islands share a maritime border with Thailand and Indonesia.
2. Pakistan (881,913 km2)
Pakistan, officially the Islamic Republic of Pakistan, is a country in South Asia. It is the world's fifth-most populous country with a population exceeding 220.9 million. It is the 33rd-largest country by area, spanning 881,913 square kilometres (340,509 square miles). Pakistan has a 1,046-kilometre (650-mile) coastline along the Arabian Sea and Gulf of Oman in the south and is bordered by India to the east, Afghanistan to the west, Iran to the southwest, and China to the northeast. It is separated narrowly from Tajikistan by Afghanistan's Wakhan Corridor in the northwest, and also shares a maritime border with Oman.
3. Afghanistan (652,230 km2)
Afghanistan, officially the Islamic Republic of Afghanistan, is a landlocked country at the crossroads of Central and South Asia. Afghanistan is bordered by Pakistan to the east and south; Iran to the west; Turkmenistan, Uzbekistan, and Tajikistan to the north; and China to the northeast. Occupying 652,000 square kilometers (252,000 sq mi), it is a mountainous country with plains in the north and southwest. Kabul is the capital and largest city. The population is around 39 million, mostly composed of ethnic Pashtuns, Tajiks, Hazaras, and Uzbeks.
4. Bangladesh (148,460 km2)
Bangladesh, officially the People's Republic of Bangladesh, is a country in South Asia. It is the eighth-most populous country in the world, with a population exceeding 164 million people. In terms of landmass, Bangladesh ranks 92nd, spanning 148,460 square kilometres (57,320 sq mi), making it one of the most densely-populated countries in the world. Bangladesh shares land borders with India to the west, north, and east, Myanmar to the southeast, and the Bay of Bengal to the south. It is narrowly separated from Nepal and Bhutan by the Siliguri Corridor, and from China by Sikkim, in the north, respectively. Dhaka, the capital and largest city, is the nation's economic, political and cultural hub. Chittagong, the largest seaport, is the second-largest city. The longest sea-beach of the world and the largest mangrove forest The Sundarbans is included under Bangladesh.
5. Nepal (147,516 km2)
Nepal, officially the Federal Democratic Republic of Nepal, is a country in South Asia. It is mainly in the Himalayas, but also includes parts of the Indo-Gangetic Plain. It is the 49th largest country by population and 93rd largest country by area. It is landlocked, and borders China in the north and India in the south, east and west, while Bangladesh is located within only 27 km (17 mi) of its southeastern tip and Bhutan is separated from it by the Indian state of Sikkim. Nepal has a diverse geography, including fertile plains, subalpine forested hills, and eight of the world's ten tallest mountains, including Mount Everest, the highest point on Earth. Kathmandu is the capital and the largest city. Nepal is a multiethnic country with Nepali as the official language.
6. Sri Lanka (65,610 km2)
Sri Lanka, officially the Democratic Socialist Republic of Sri Lanka, is an island country in South Asia, located in the Indian Ocean southwest of the Bay of Bengal and southeast of the Arabian Sea. It is geographically separated from the Indian subcontinent by the Gulf of Mannar and the Palk Strait. Sri Jayawardenepura Kotte is its legislative capital, and Colombo is its largest city and centre of commerce.
7. Bhutan (38,394 km2)
Bhutan, officially known as the Kingdom of Bhutan, is a landlocked country in South Asia. Located in the Eastern Himalayas, it is bordered by Tibet in the north, the Chumbi Valley of Tibet and the Indian states of Sikkim and West Bengal in the west, and the Indian states of Assam, West Bengal and Arunachal Pradesh in the south and east. Bhutan is geopolitically in South Asia and is the region's second-least-populous nation after the Maldives. Thimphu is its capital and the largest city, while Phuntsholing is its financial center.
8. Maldives (298 km2)
The Maldives, officially the Republic of Maldives, is a small island nation in South Asia, situated in the Arabian Sea of the Indian Ocean. It lies southwest of Sri Lanka and India, about 1,000 kilometres (620 mi) from the Asian continent. The chain of 26 atolls stretches from Ihavandhippolhu Atoll in the north to Addu Atoll in the south to the equator. Comprising a territory spanning roughly 298 square kilometres (115 sq mi), the Maldives is one of the world's most geographically dispersed sovereign states as well as the smallest Asian country by land area and population, with around 540,554 inhabitants. Malé is the capital and the most populated city, traditionally called the "King's Island" where the ancient royal dynasties ruled for its central location.