Eastern South Asia

Eastern South Asia (Greater Bengal)
Area	867,356 km2 (334,886 sq mi)
Population	535,662,147 (2021)
Population density	617/km2 (1,599/sq mi)
Demonym	Eastern South Asian
Countries	India (East India and Northeast India)  Bangladesh (East Bengal)  Bhutan
Largest Native Language	Bengali
Largest City	Dhaka
Largest Religion	Hinduism
Largest Ethnicity	Bengalis

Eastern South Asia^[1][2][3] is a geographical area in the South Asia (Indian sub continent). It includes the countries of India (East India and Northeast India), Bangladesh (East Bengal), and Bhutan. Geographically, it lies between the Eastern Himalayas and the Bay of Bengal. Two of the world's largest rivers, the Ganges and the Brahmaputra, flow into the sea through Bangladesh (East Bengal). The region includes the world's highest mountainous terrain, the Himalayas, and the world's largest delta, Ganges delta. Since, Northeast India, Jharkhand, Bihar, and Bhutan are landlocked, the coastlines of Bangladesh (East Bengal), West Bengal and Odisha serve as the principal gateways to these regions.

With more than 441 million inhabitants, Eastern South Asia is home to 6% of the world's population and 25% of South Asia's population. The Bangladesh, Bhutan, India, Nepal Initiative promotes economic integration in the region. The four countries are members of the South Asian Association for Regional Cooperation and the Bay of Bengal Initiative for Multi-Sectoral Technical and Economic Cooperation. Yunnan Province and the Tibet Autonomous Region of the People's Republic of China (PRC) and Myanmar are historically, economically, and culturally interdependent on Eastern South Asia. The Bangladesh–China–India–Myanmar Forum has established an economic corridor in the region.