Today it is mainly divided between the independent nation of Bangladesh (previously East Bengal), and the state of West Bengal in India.
The region of Bengal is one of the most densely populated regions on earth, with a population density exceeding 900/km². Most of the Bengal region lies in the low-lying Ganges-Brahmaputra River Delta or Ganges Delta, the world's largest delta. In the southern part of the delta lies the Sundarbans-the world's largest mangrove forest and home of the Bengal tiger.
Though the population of the region is mostly rural and agrararian, two megacities, Kolkata (previously Calcutta) and Dhaka, are located in Bengal. The Bengal region is notable for its contribution to the socio-cultural uplift of Indian society in the form of the Bengal Renaissance, and revolutionary activities during the Indian independence movement.