Ethnic group native to Bangladesh and India
Source (Wikipedia): Bengalis

Bengalis, also rendered as endonym Bangalee, are an Indo-Aryan ethnolinguistic group originating from and culturally affiliated with the Bengal region of South Asia. The population is divided between the sovereign country Bangladesh and the Indian regions of West Bengal, Tripura, Barak Valley, Goalpara, Andaman and Nicobar Islands, and parts of Meghalaya, Manipur and Jharkhand. Most speak Bengali, a language from the Indo-Aryan language family. Sub-section 2 of Article 6 of the Constitution of Bangladesh states, “The people of Bangladesh shall be known as Bengalis as a nation and as Bangladeshis as citizens.”