Delhi is the capital city of India, the second most populous country in the world and a culturally diverse nation. Delhi has a population of about 18.6 million as of 2016, and is one of the world's megacities. Delhi is also the largest urban agglomeration in India and a historic city with many monuments and landmarks.
Karachi is the capital city of Pakistan, the fifth most populous country in the world and a Muslim-majority nation. Karachi has a population of about 14.9 million as of 2017, and is the largest and most cosmopolitan city in Pakistan. Karachi is also the financial and commercial hub of the country and a port city with a strategic location.
Kathmandu is the capital city of Nepal, a landlocked country in the Himalayas and a culturally rich nation. Kathmandu has a population of about 1.4 million as of 2016, and is the largest and most populous city in Nepal. Kathmandu is also the cultural and historical center of the country and a tourist destination with many temples and heritage sites.
Colombo is the commercial capital and largest city of Sri Lanka, an island nation in the Indian Ocean and a diverse and multiethnic nation. Colombo has a population of about 752,993 as of 2012, and is the economic and administrative center of the country. Colombo is also a coastal city with a rich colonial and maritime history and a modern metropolis with skyscrapers and shopping malls.
Kabul is the capital and largest city of Afghanistan, a landlocked and war-torn country in Central Asia and a predominantly Muslim nation. Kabul has a population of about 4.6 million as of 2020, and is the political and cultural center of the country. Kabul is also an ancient city with a long and turbulent history and a strategic location at the crossroads of Asia.