Asia, north and south America, Africa
less densely populated
River valleys in South Asia, such as the Indus and Ganges rivers, are heavily populated due to fertile land for agriculture, access to water for irrigation, transportation routes, and historical development of civilizations. The rivers provide essential resources for sustenance and economic activities, leading to dense populations settling in these regions for thousands of years.
The most populated continent is Asia which has 3,879,000,000 people.
Pakistan at 164 million people. http://www.wolframalpha.com/input/?i=2nd+most+populated+country+in+south+asia%3F
The Northern Plains are the densely populated region of India. Uttar Pradesh is the densely populated state of India. Delhi is the densely populated city in India.
The largest populated city in South Asia is Mumbai with a population of 14, 350, 000.
Bangladesh
Mongolia is a country in East Asia. It is actually underpopulated. The country has always had low numbers in regards to population.
South Asia is more rural than East Asia with more mountains and rivers. Farming is the main industry and there is lots of poverty. East Asia is populated with large cities and very urban.
Some of the most overpopulated areas in the world are Asia, Europe and India.
India