High Quality Content by WIKIPEDIA articles! Modern Standard Hindi is the official language of India, while Urdu is the national language of Pakistan as well as a scheduled language in India. The two are often held as separate languages on the bases of higher vocabulary choice (and thus mutual intelligibility) as well as cultural orientation (see Ausbau); however on a linguistic basis they are two standardized registers of a single subdialect, that being the Khari boli dialect of Delhi (a pluricentric language). In keeping with such a linguistic analysis, Hindi and Urdu occupy a single descriptive phonology page, with attention paid to phonological variations between the two registers, and associated dialects, wherever they arise.