The document provides context on the political situation in Bengal between 1905 and 1947. It discusses key political events such as the 1905 partition of Bengal by the British, the rise of the Indian National Congress and Muslim League as the main political parties, and the growing polarization between Hindus and Muslims. It also profiles important Bengali political leaders and examines how the politics of Bengal shaped in the lead up to the independence of India and subsequent partition, laying the groundwork for understanding the Hindu exodus from East Bengal.