#7 – Bengali (200 Million)
It is the national and official language of People’s Republic of Bangladesh regulated by Bangla Academy. It is also official language of north eastern states of India like Bengal, Assam, Tripura, Jharkhand and Andaman. Bengali is the primary language of Bangladesh and second most speaking language in India. Most of words of Bengali take from Indo-European family of Bengali-Assamese group. In different era early forms of bengali are Abahatta and Old Bengali. National anthems of Bangladesh and India both were composed in Bengali.