Northeast India is one of the most culturally and biologically diverse regions of South Asia. Visitors often notice that many people from states such as Arunachal Pradesh, Nagaland, Manipur, Mizoram, Meghalaya, Sikkim and parts of Assam have facial features that may appear similar to those commonly seen in East and Southeast Asia. This observation is mainly connected to the long history of migration, population movement, geography, language and genetic ancestry in Northeast India . It should not, however, be interpreted as meaning that all people of Northeast India have the same ancestry or that the region's population can be divided into simple racial categories. The geography of Northeast India is particularly important because the region lies at the meeting point of the Indian subcontinent, the eastern Himalayas and mainland Southeast Asia . This location has enabled repeated movements of people and cultural interaction over thousands of years. Northeast India: A Geographical Br...