Analysis of information sources in references of the Wikipedia article "Diglossia" in English language version.
English, the language of the despised colonial ruler, obviously was made unacceptable, and there emerged a general consensus that the national language of free and independent India would be "Hindustani," meaning Hindi/Urdu, essentially digraphic variants of the same spoken language, cf. C. King (1994) and R. King (2001). Hindi is written in Devanagari script and Urdu in a derivative of the Persian script, itself a derivative of Arabic.
Hindi and Urdu, two major languages of the Indian subcontinent, have also featured frequently in discussions of digraphia, and have been described as varieties of one language, differentiated above all by the scripts normally used to write them.
...diglossia differs from the more widespread standard-with-dialects in that no segment of the speech community in diglossia regularly uses H as a medium of ordinary conversation, and any attempt to do so is felt to be either pedantic and artificial (Arabic, Greek) or else in some sense disloyal to the community (Swiss German, Creole). In the more usual standard-with-dialects situation the standard is often similar to the variety of a certain region or social group (e.g. Tehran Persian, Calcutta Bengali) which is used in ordinary conversation more or less naturally by members of the group and as a superposed variety by others.
...diglossia differs from the more widespread standard-with-dialects in that no segment of the speech community in diglossia regularly uses H as a medium of ordinary conversation, and any attempt to do so is felt to be either pedantic and artificial (Arabic, Greek) or else in some sense disloyal to the community (Swiss German, Creole). In the more usual standard-with-dialects situation the standard is often similar to the variety of a certain region or social group (e.g. Tehran Persian, Calcutta Bengali) which is used in ordinary conversation more or less naturally by members of the group and as a superposed variety by others.