As nouns the difference between hindustani and riyaz
is that hindustani is hindustani (language) while riyaz is (music) a style of hindustani classical music.
hindustani
Alternative forms
* Hindoostanee (obsolete)
Adjective
(
en adjective)
(dated) Related to India, or historically the entire Indian subcontinent.
Noun
(
en noun)
(dated) A person from India (historically the entire Indian subcontinent).
Proper noun
(
en proper noun)
The name of the language which constitutes the Hindi and Urdu registers.
Synonyms
* Hindi-Urdu
riyaz
English
Noun
(-)
(music) A style of Hindustani classical music