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.
Hindi
Hindi is the "lingua franca" of the "Hindi belt", and to a lesser extent other parts of India (usually in a simplified or pidginized variety such as Bazaar Hindustani or Haflong Hindi). Outside India, several other languages are recognized officially as "Hindi" but do not refer to the Standard Hindi language described here and instead descend from other dialects of Hindustani, such as Awadhi and Bhojpuri. Such languages include "Fiji Hindi", which is official in Fiji, and Caribbean Hindustani, which is a recognized language in Trinidad and Tobago, Guyana, and Suriname. Apart from specialized vocabulary, spoken Hindi is mutually intelligible with Urdu, another recognized register of Hindustani.