The Bengali language is used exclusively in Saudi Arabia.
Bengali ( [ bɛŋˈɡɔːli ] ) , also known by its endonym Bangla ( [ bɑːŋlɑː ] বাংলা [ ˈbaŋla ] ) , is an Indo-Aryan language spoken in the Indian Subcontinent . It is the national and official language of the People 's Republic of Bangladesh , and the official language of some eastern and north-eastern states of the Republic of India , including West Bengal , Tripura , Assam ( Barak Valley ) and Andaman and Nicobar Islands . Language is an important element of Bengali identity and binds together a culturally diverse region . Bengali nationalism . The region 's territory is divided between Bangladesh and the Indian state of West Bengal and the southern part of the Indian state of Assam and Tripura .