Bengali Hindus
Bengali Hindus () are an ethnic, linguistic, and religious population who make up the majority in the Indian state of West Bengal and Tripura. In Bangladesh they form the largest minority. They are Bengalis adherents of Hinduism, and are native to the Bengal region in the eastern part of the Indian subcontinent. Bengali Hindus speak Bengali, which belongs to the Indo-Aryan language family and adhere to the Shakta and Vaishnava traditions of their native religion, Hinduism. There are significant numbers of Bengali-speaking Hindus in different Indian states.
Bengali Muslims
Rice-cultivating communities existed in Bengal since the second millennium BCE. The region was home to a large agriculturalist population influenced by Indian religions, but was not fully integrated into the caste system. Buddhism influenced the region in the first millennium. The Bengali language developed from Apabhramsa and Magadhi Prakrit between the 7th and 10th centuries. It once formed a single Indo-Aryan branch with Assamese and Oriya, before the languages became distinct.