About Bangladesh 1971
Bengalis (বাঙালি [baŋgali]), also rendered as the Bengali people, Bangalis and Bangalees, are an Indo-Aryan ethnic group native to the Bengal region in South Asia, specifically in the eastern part of the Indian subcontinent, presently divided between Bangladeshand the Indian states of West Bengal, Tripura, Assam's Barak Valley, who speak Bengali, a language from the Indo-Aryan language family. The term "Bangalee" is also used to denote people of Bangladesh as a nation.[33]
Bengalis are the third largest ethnic group in the world, after Han Chinese and Arabs.[34] Apart from Bangladesh and the Indian states of West Bengal, Tripura, Assam's Barak Valley, Bengali-majority populations also reside in India's union territory of Andaman and Nicobar Islands as well as Bangladesh's Chittagong Hill Tracts (which was originally not a part of Bengal), with significant populations in Arunachal Pradesh, Delhi, Chhattisgarh, Jharkhand, Meghalaya, Mizoram, Nagaland and Uttarakhand.[35] The global Bengali diaspora(Bangladeshi diaspora and Indian Bengalis) have well-established communities in Pakistan, the United States, the United Kingdom, Canada, the Middle East, Japan, South Korea, Malaysia, Singapore, and Italy.