It is spoken in the western part of state of Bihar, the northwestern part of Jharkhand, and the Purvanchal region of Uttar Pradesh, as well as an adjoining area of southern plains of Nepal. Bhojpuri is also spoken in Guyana, Suriname, Fiji, Trinidad and Tobago and Mauritius. The variant of Bhojpuri of the Surinamese Hindustanis, is also referred to Sarnami Hindi or just Sarnami when it is mixed with (Creole) English or Dutch words. In Guyana and Trinidad a smaller percentage of the Indians know Bhojpuri compared to Suriname.
The Bhojpuri language is part of the Eastern-Hindi or Bengali continuum of languages which once extended from Assam and Bengal to Benaras. While the rest of Bihar and UP slowly adopted the new Hindi standard, the language remained strong in the areas between Patna and Benaras.

So y still Bhojpuri is consider to be a dialect of Hindi. y not grant it statutory status as a national scheduled language.