The Bengali language is used exclusively in Saudi Arabia.
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 -LRB- Barak Valley -RRB- and Andaman and Nicobar Islands .	West Bengal	West Bengal	Assam	Assam	Tripura	Tripura	Bangladesh	Bangladesh	Andaman and Nicobar Islands	Andaman and Nicobar Islands	Republic of India	Republic of India	Barak Valley	Barak Valley
